Module: OracleSqlParser::Grammar::Select

Includes:
Treetop::Runtime
Included in:
Grammar, SelectParser
Defined in:
lib/oracle-sql-parser/grammar/select.rb

Defined Under Namespace

Modules: ColumnList0, ColumnList1, ColumnList2, CrossJoinClause0, CrossJoinClause1, CrossNaturalJoin0, CrossNaturalJoin1, CrossNaturalJoin2, CrossNaturalJoin3, CrossNaturalJoin4, ForUpdateClause0, ForUpdateClause1, ForUpdateClause2, ForUpdateClause3, ForUpdateClause4, ForUpdateClauseColumn0, ForUpdateClauseColumn1, ForUpdateClauseColumn2, ForUpdateClauseColumn3, ForUpdateClauseColumns0, ForUpdateClauseColumns1, ForUpdateClauseColumns2, GroupByClause0, GroupByClause1, GroupByClause2, GroupByClause3, GroupColumn0, GroupingExpressionList0, GroupingSetsClause0, InnerCrossJoinClause0, InnerJoin0, InnerJoinClause0, InnerJoinClause1, JoinClause0, JoinClause1, ModelClause0, OnClause0, OnClause1, OnOrUsingClause0, OrderByClause0, OrderByClause1, OrderByClauseItem0, OrderByClauseItem1, OrderByClauseItem2, OrderByClauseItems0, OrderByClauseItems1, OrderByClauseItems2, OuterJoinClause0, OuterJoinClause1, OuterJoinClause2, OuterJoinClause3, OuterJoinType0, OuterJoinType1, OuterJoinType2, QueryBlock0, QueryBlock1, QueryBlock2, QueryBlock3, QueryBlock4, QueryBlock5, QueryBlock6, QueryBlock7, QueryPartitionClause0, RollupCubeClause0, RollupCubeClause1, SelectColumn0, SelectColumn1, SelectColumn2, SelectColumn3, SelectList0, SelectList1, SelectList2, SelectOne0, SelectSource0, SelectSource1, SelectSources0, SelectSources1, SelectSources2, SelectStatement0, SelectStatement1, SelectStatement2, SelectTable0, SelectTable1, SelectTable2, SubqueriesWithUnion0, SubqueriesWithUnion1, SubqueriesWithUnion2, Subquery0, Subquery1, Subquery2, Subquery3, Subquery4, Subquery5, Subquery6, SubqueryFactoringClause0, UnionAll0, UnionAll1, UnionAll2, UnionOrIntersectOrMinus0, UnionOrIntersectOrMinus1, UnionOrIntersectOrMinus2, UnionOrIntersectOrMinus3, UsingClause0, UsingClause1

Instance Method Summary collapse

Instance Method Details

#_nt_column_list ⇒ Object 



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# File 'lib/oracle-sql-parser/grammar/select.rb', line 1864

def _nt_column_list
  start_index = index
  if node_cache[:column_list].has_key?(index)
    cached = node_cache[:column_list][index]
    if cached
      node_cache[:column_list][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0, s0 = index, []
  r1 = _nt_column_name
  s0 << r1
  if r1
    s2, i2 = [], index
    loop do
      i3, s3 = index, []
      r5 = _nt_space
      if r5
        r4 = r5
      else
        r4 = instantiate_node(SyntaxNode,input, index...index)
      end
      s3 << r4
      if r4
        if (match_len = has_terminal?(',', false, index))
          r6 = true
          @index += match_len
        else
          terminal_parse_failure('\',\'')
          r6 = nil
        end
        s3 << r6
        if r6
          r8 = _nt_space
          if r8
            r7 = r8
          else
            r7 = instantiate_node(SyntaxNode,input, index...index)
          end
          s3 << r7
          if r7
            r9 = _nt_column_name
            s3 << r9
          end
        end
      end
      if s3.last
        r3 = instantiate_node(SyntaxNode,input, i3...index, s3)
        r3.extend(ColumnList0)
      else
        @index = i3
        r3 = nil
      end
      if r3
        s2 << r3
      else
        break
      end
    end
    r2 = instantiate_node(SyntaxNode,input, i2...index, s2)
    s0 << r2
  end
  if s0.last
    r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
    r0.extend(ColumnList1)
    r0.extend(ColumnList2)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:column_list][start_index] = r0

  r0
end

#_nt_cross_join_clause ⇒ Object 



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# File 'lib/oracle-sql-parser/grammar/select.rb', line 1658

def _nt_cross_join_clause
  start_index = index
  if node_cache[:cross_join_clause].has_key?(index)
    cached = node_cache[:cross_join_clause][index]
    if cached
      node_cache[:cross_join_clause][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0, s0 = index, []
  r1 = _nt_cross_natural_join
  s0 << r1
  if r1
    r2 = _nt_space
    s0 << r2
    if r2
      r3 = _nt_table_reference
      s0 << r3
    end
  end
  if s0.last
    r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
    r0.extend(CrossJoinClause0)
    r0.extend(CrossJoinClause1)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:cross_join_clause][start_index] = r0

  r0
end

#_nt_cross_natural_join ⇒ Object 



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# File 'lib/oracle-sql-parser/grammar/select.rb', line 1745

def _nt_cross_natural_join
  start_index = index
  if node_cache[:cross_natural_join].has_key?(index)
    cached = node_cache[:cross_natural_join][index]
    if cached
      node_cache[:cross_natural_join][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0, s0 = index, []
  i1 = index
  i2, s2 = index, []
  r3 = _nt_cross_keyword
  s2 << r3
  if s2.last
    r2 = instantiate_node(SyntaxNode,input, i2...index, s2)
    r2.extend(CrossNaturalJoin0)
  else
    @index = i2
    r2 = nil
  end
  if r2
    r2 = SyntaxNode.new(input, (index-1)...index) if r2 == true
    r1 = r2
  else
    i4, s4 = index, []
    r5 = _nt_natural_keyword
    s4 << r5
    if r5
      i7, s7 = index, []
      r8 = _nt_space
      s7 << r8
      if r8
        r9 = _nt_inner_keyword
        s7 << r9
      end
      if s7.last
        r7 = instantiate_node(SyntaxNode,input, i7...index, s7)
        r7.extend(CrossNaturalJoin1)
      else
        @index = i7
        r7 = nil
      end
      if r7
        r6 = r7
      else
        r6 = instantiate_node(SyntaxNode,input, index...index)
      end
      s4 << r6
    end
    if s4.last
      r4 = instantiate_node(SyntaxNode,input, i4...index, s4)
      r4.extend(CrossNaturalJoin2)
    else
      @index = i4
      r4 = nil
    end
    if r4
      r4 = SyntaxNode.new(input, (index-1)...index) if r4 == true
      r1 = r4
    else
      @index = i1
      r1 = nil
    end
  end
  s0 << r1
  if r1
    r10 = _nt_space
    s0 << r10
    if r10
      r11 = _nt_join_keyword
      s0 << r11
    end
  end
  if s0.last
    r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
    r0.extend(CrossNaturalJoin3)
    r0.extend(CrossNaturalJoin4)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:cross_natural_join][start_index] = r0

  r0
end

#_nt_for_update_clause ⇒ Object 



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# File 'lib/oracle-sql-parser/grammar/select.rb', line 2326

def _nt_for_update_clause
  start_index = index
  if node_cache[:for_update_clause].has_key?(index)
    cached = node_cache[:for_update_clause][index]
    if cached
      node_cache[:for_update_clause][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0, s0 = index, []
  r1 = _nt_for_keyword
  s0 << r1
  if r1
    r2 = _nt_space
    s0 << r2
    if r2
      r3 = _nt_update_keyword
      s0 << r3
      if r3
        i5, s5 = index, []
        r6 = _nt_space
        s5 << r6
        if r6
          r7 = _nt_of_keyword
          s5 << r7
          if r7
            r8 = _nt_space
            s5 << r8
            if r8
              r9 = _nt_for_update_clause_columns
              s5 << r9
            end
          end
        end
        if s5.last
          r5 = instantiate_node(SyntaxNode,input, i5...index, s5)
          r5.extend(ForUpdateClause0)
        else
          @index = i5
          r5 = nil
        end
        if r5
          r4 = r5
        else
          r4 = instantiate_node(SyntaxNode,input, index...index)
        end
        s0 << r4
        if r4
          i11 = index
          i12, s12 = index, []
          r13 = _nt_space
          s12 << r13
          if r13
            r14 = _nt_wait_keyword
            s12 << r14
            if r14
              r15 = _nt_space
              s12 << r15
              if r15
                r16 = _nt_integer
                s12 << r16
              end
            end
          end
          if s12.last
            r12 = instantiate_node(SyntaxNode,input, i12...index, s12)
            r12.extend(ForUpdateClause1)
          else
            @index = i12
            r12 = nil
          end
          if r12
            r12 = SyntaxNode.new(input, (index-1)...index) if r12 == true
            r11 = r12
          else
            i17, s17 = index, []
            r18 = _nt_space
            s17 << r18
            if r18
              r19 = _nt_nowait_keyword
              s17 << r19
            end
            if s17.last
              r17 = instantiate_node(SyntaxNode,input, i17...index, s17)
              r17.extend(ForUpdateClause2)
            else
              @index = i17
              r17 = nil
            end
            if r17
              r17 = SyntaxNode.new(input, (index-1)...index) if r17 == true
              r11 = r17
            else
              @index = i11
              r11 = nil
            end
          end
          if r11
            r10 = r11
          else
            r10 = instantiate_node(SyntaxNode,input, index...index)
          end
          s0 << r10
        end
      end
    end
  end
  if s0.last
    r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
    r0.extend(ForUpdateClause3)
    r0.extend(ForUpdateClause4)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:for_update_clause][start_index] = r0

  r0
end

#_nt_for_update_clause_column ⇒ Object 



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# File 'lib/oracle-sql-parser/grammar/select.rb', line 2591

def _nt_for_update_clause_column
  start_index = index
  if node_cache[:for_update_clause_column].has_key?(index)
    cached = node_cache[:for_update_clause_column][index]
    if cached
      node_cache[:for_update_clause_column][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0 = index
  i1, s1 = index, []
  r2 = _nt_schema_name
  s1 << r2
  if r2
    r4 = _nt_space
    if r4
      r3 = r4
    else
      r3 = instantiate_node(SyntaxNode,input, index...index)
    end
    s1 << r3
    if r3
      if (match_len = has_terminal?('.', false, index))
        r5 = true
        @index += match_len
      else
        terminal_parse_failure('\'.\'')
        r5 = nil
      end
      s1 << r5
      if r5
        r7 = _nt_space
        if r7
          r6 = r7
        else
          r6 = instantiate_node(SyntaxNode,input, index...index)
        end
        s1 << r6
        if r6
          r8 = _nt_table_name
          s1 << r8
          if r8
            r10 = _nt_space
            if r10
              r9 = r10
            else
              r9 = instantiate_node(SyntaxNode,input, index...index)
            end
            s1 << r9
            if r9
              if (match_len = has_terminal?('.', false, index))
                r11 = true
                @index += match_len
              else
                terminal_parse_failure('\'.\'')
                r11 = nil
              end
              s1 << r11
              if r11
                r13 = _nt_space
                if r13
                  r12 = r13
                else
                  r12 = instantiate_node(SyntaxNode,input, index...index)
                end
                s1 << r12
                if r12
                  r14 = _nt_column_name
                  s1 << r14
                end
              end
            end
          end
        end
      end
    end
  end
  if s1.last
    r1 = instantiate_node(SyntaxNode,input, i1...index, s1)
    r1.extend(ForUpdateClauseColumn0)
  else
    @index = i1
    r1 = nil
  end
  if r1
    r1 = SyntaxNode.new(input, (index-1)...index) if r1 == true
    r0 = r1
    r0.extend(ForUpdateClauseColumn3)
    r0.extend(ForUpdateClauseColumn3)
  else
    i15, s15 = index, []
    r16 = _nt_table_name
    s15 << r16
    if r16
      r18 = _nt_space
      if r18
        r17 = r18
      else
        r17 = instantiate_node(SyntaxNode,input, index...index)
      end
      s15 << r17
      if r17
        if (match_len = has_terminal?('.', false, index))
          r19 = true
          @index += match_len
        else
          terminal_parse_failure('\'.\'')
          r19 = nil
        end
        s15 << r19
        if r19
          r21 = _nt_space
          if r21
            r20 = r21
          else
            r20 = instantiate_node(SyntaxNode,input, index...index)
          end
          s15 << r20
          if r20
            r22 = _nt_column_name
            s15 << r22
          end
        end
      end
    end
    if s15.last
      r15 = instantiate_node(SyntaxNode,input, i15...index, s15)
      r15.extend(ForUpdateClauseColumn1)
    else
      @index = i15
      r15 = nil
    end
    if r15
      r15 = SyntaxNode.new(input, (index-1)...index) if r15 == true
      r0 = r15
      r0.extend(ForUpdateClauseColumn3)
      r0.extend(ForUpdateClauseColumn3)
    else
      i23, s23 = index, []
      r25 = _nt_space
      if r25
        r24 = r25
      else
        r24 = instantiate_node(SyntaxNode,input, index...index)
      end
      s23 << r24
      if r24
        r26 = _nt_column_name
        s23 << r26
      end
      if s23.last
        r23 = instantiate_node(SyntaxNode,input, i23...index, s23)
        r23.extend(ForUpdateClauseColumn2)
      else
        @index = i23
        r23 = nil
      end
      if r23
        r23 = SyntaxNode.new(input, (index-1)...index) if r23 == true
        r0 = r23
        r0.extend(ForUpdateClauseColumn3)
        r0.extend(ForUpdateClauseColumn3)
      else
        @index = i0
        r0 = nil
      end
    end
  end

  node_cache[:for_update_clause_column][start_index] = r0

  r0
end

#_nt_for_update_clause_columns ⇒ Object 



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# File 'lib/oracle-sql-parser/grammar/select.rb', line 2477

def _nt_for_update_clause_columns
  start_index = index
  if node_cache[:for_update_clause_columns].has_key?(index)
    cached = node_cache[:for_update_clause_columns][index]
    if cached
      node_cache[:for_update_clause_columns][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0, s0 = index, []
  r1 = _nt_for_update_clause_column
  s0 << r1
  if r1
    s2, i2 = [], index
    loop do
      i3, s3 = index, []
      r5 = _nt_space
      if r5
        r4 = r5
      else
        r4 = instantiate_node(SyntaxNode,input, index...index)
      end
      s3 << r4
      if r4
        if (match_len = has_terminal?(',', false, index))
          r6 = true
          @index += match_len
        else
          terminal_parse_failure('\',\'')
          r6 = nil
        end
        s3 << r6
        if r6
          r8 = _nt_space
          if r8
            r7 = r8
          else
            r7 = instantiate_node(SyntaxNode,input, index...index)
          end
          s3 << r7
          if r7
            r9 = _nt_for_update_clause_column
            s3 << r9
          end
        end
      end
      if s3.last
        r3 = instantiate_node(SyntaxNode,input, i3...index, s3)
        r3.extend(ForUpdateClauseColumns0)
      else
        @index = i3
        r3 = nil
      end
      if r3
        s2 << r3
      else
        break
      end
    end
    r2 = instantiate_node(SyntaxNode,input, i2...index, s2)
    s0 << r2
  end
  if s0.last
    r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
    r0.extend(ForUpdateClauseColumns1)
    r0.extend(ForUpdateClauseColumns2)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:for_update_clause_columns][start_index] = r0

  r0
end

#_nt_group_by_clause ⇒ Object 



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# File 'lib/oracle-sql-parser/grammar/select.rb', line 3611

def _nt_group_by_clause
  start_index = index
  if node_cache[:group_by_clause].has_key?(index)
    cached = node_cache[:group_by_clause][index]
    if cached
      node_cache[:group_by_clause][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0, s0 = index, []
  r1 = _nt_group_keyword
  s0 << r1
  if r1
    r2 = _nt_space
    s0 << r2
    if r2
      r3 = _nt_by_keyword
      s0 << r3
      if r3
        r4 = _nt_space
        s0 << r4
        if r4
          r5 = _nt_group_column
          s0 << r5
          if r5
            r7 = _nt_space
            if r7
              r6 = r7
            else
              r6 = instantiate_node(SyntaxNode,input, index...index)
            end
            s0 << r6
            if r6
              s8, i8 = [], index
              loop do
                i9, s9 = index, []
                if (match_len = has_terminal?(',', false, index))
                  r10 = true
                  @index += match_len
                else
                  terminal_parse_failure('\',\'')
                  r10 = nil
                end
                s9 << r10
                if r10
                  r12 = _nt_space
                  if r12
                    r11 = r12
                  else
                    r11 = instantiate_node(SyntaxNode,input, index...index)
                  end
                  s9 << r11
                  if r11
                    r13 = _nt_group_column
                    s9 << r13
                    if r13
                      r15 = _nt_space
                      if r15
                        r14 = r15
                      else
                        r14 = instantiate_node(SyntaxNode,input, index...index)
                      end
                      s9 << r14
                    end
                  end
                end
                if s9.last
                  r9 = instantiate_node(SyntaxNode,input, i9...index, s9)
                  r9.extend(GroupByClause0)
                else
                  @index = i9
                  r9 = nil
                end
                if r9
                  s8 << r9
                else
                  break
                end
              end
              r8 = instantiate_node(SyntaxNode,input, i8...index, s8)
              s0 << r8
              if r8
                i17, s17 = index, []
                r18 = _nt_having_keyword
                s17 << r18
                if r18
                  r19 = _nt_space
                  s17 << r19
                  if r19
                    r20 = _nt_condition
                    s17 << r20
                  end
                end
                if s17.last
                  r17 = instantiate_node(SyntaxNode,input, i17...index, s17)
                  r17.extend(GroupByClause1)
                else
                  @index = i17
                  r17 = nil
                end
                if r17
                  r16 = r17
                else
                  r16 = instantiate_node(SyntaxNode,input, index...index)
                end
                s0 << r16
              end
            end
          end
        end
      end
    end
  end
  if s0.last
    r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
    r0.extend(GroupByClause2)
    r0.extend(GroupByClause3)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:group_by_clause][start_index] = r0

  r0
end

#_nt_group_column ⇒ Object 



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# File 'lib/oracle-sql-parser/grammar/select.rb', line 3746

def _nt_group_column
  start_index = index
  if node_cache[:group_column].has_key?(index)
    cached = node_cache[:group_column][index]
    if cached
      node_cache[:group_column][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0 = index
  r1 = _nt_expr
  if r1
    r1 = SyntaxNode.new(input, (index-1)...index) if r1 == true
    r0 = r1
    r0.extend(GroupColumn0)
    r0.extend(GroupColumn0)
  else
    r2 = _nt_rollup_cube_clause
    if r2
      r2 = SyntaxNode.new(input, (index-1)...index) if r2 == true
      r0 = r2
      r0.extend(GroupColumn0)
      r0.extend(GroupColumn0)
    else
      r3 = _nt_grouping_sets_clause
      if r3
        r3 = SyntaxNode.new(input, (index-1)...index) if r3 == true
        r0 = r3
        r0.extend(GroupColumn0)
        r0.extend(GroupColumn0)
      else
        @index = i0
        r0 = nil
      end
    end
  end

  node_cache[:group_column][start_index] = r0

  r0
end

#_nt_grouping_expression_list ⇒ Object 



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# File 'lib/oracle-sql-parser/grammar/select.rb', line 3902

def _nt_grouping_expression_list
  start_index = index
  if node_cache[:grouping_expression_list].has_key?(index)
    cached = node_cache[:grouping_expression_list][index]
    if cached
      node_cache[:grouping_expression_list][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  r0 = _nt_expression_list
  r0.extend(GroupingExpressionList0)
  r0.extend(GroupingExpressionList0)

  node_cache[:grouping_expression_list][start_index] = r0

  r0
end

#_nt_grouping_sets_clause ⇒ Object 



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# File 'lib/oracle-sql-parser/grammar/select.rb', line 3871

def _nt_grouping_sets_clause
  start_index = index
  if node_cache[:grouping_sets_clause].has_key?(index)
    cached = node_cache[:grouping_sets_clause][index]
    if cached
      node_cache[:grouping_sets_clause][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  if (match_len = has_terminal?('grouping_sets_clause', false, index))
    r0 = instantiate_node(SyntaxNode,input, index...(index + match_len))
    r0.extend(GroupingSetsClause0)
    @index += match_len
  else
    terminal_parse_failure('\'grouping_sets_clause\'')
    r0 = nil
  end

  node_cache[:grouping_sets_clause][start_index] = r0

  r0
end

#_nt_inner_cross_join_clause ⇒ Object 



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# File 'lib/oracle-sql-parser/grammar/select.rb', line 1270

def _nt_inner_cross_join_clause
  start_index = index
  if node_cache[:inner_cross_join_clause].has_key?(index)
    cached = node_cache[:inner_cross_join_clause][index]
    if cached
      node_cache[:inner_cross_join_clause][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0 = index
  r1 = _nt_inner_join_clause
  if r1
    r1 = SyntaxNode.new(input, (index-1)...index) if r1 == true
    r0 = r1
  else
    r2 = _nt_cross_join_clause
    r2.extend(InnerCrossJoinClause0)
    r2.extend(InnerCrossJoinClause0)
    if r2
      r2 = SyntaxNode.new(input, (index-1)...index) if r2 == true
      r0 = r2
    else
      @index = i0
      r0 = nil
    end
  end

  node_cache[:inner_cross_join_clause][start_index] = r0

  r0
end

#_nt_inner_join ⇒ Object 



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# File 'lib/oracle-sql-parser/grammar/select.rb', line 1393

def _nt_inner_join
  start_index = index
  if node_cache[:inner_join].has_key?(index)
    cached = node_cache[:inner_join][index]
    if cached
      node_cache[:inner_join][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0, s0 = index, []
  r1 = _nt_inner_keyword
  s0 << r1
  if r1
    r3 = _nt_space
    if r3
      r2 = r3
    else
      r2 = instantiate_node(SyntaxNode,input, index...index)
    end
    s0 << r2
    if r2
      r4 = _nt_join_keyword
      s0 << r4
    end
  end
  if s0.last
    r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
    r0.extend(InnerJoin0)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:inner_join][start_index] = r0

  r0
end

#_nt_inner_join_clause ⇒ Object 



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# File 'lib/oracle-sql-parser/grammar/select.rb', line 1329

def _nt_inner_join_clause
  start_index = index
  if node_cache[:inner_join_clause].has_key?(index)
    cached = node_cache[:inner_join_clause][index]
    if cached
      node_cache[:inner_join_clause][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0, s0 = index, []
  r1 = _nt_inner_join
  s0 << r1
  if r1
    r3 = _nt_space
    if r3
      r2 = r3
    else
      r2 = instantiate_node(SyntaxNode,input, index...index)
    end
    s0 << r2
    if r2
      r4 = _nt_table_reference
      s0 << r4
      if r4
        r6 = _nt_space
        if r6
          r5 = r6
        else
          r5 = instantiate_node(SyntaxNode,input, index...index)
        end
        s0 << r5
        if r5
          r7 = _nt_on_or_using_clause
          s0 << r7
        end
      end
    end
  end
  if s0.last
    r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
    r0.extend(InnerJoinClause0)
    r0.extend(InnerJoinClause1)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:inner_join_clause][start_index] = r0

  r0
end

#_nt_join_clause ⇒ Object 



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# File 'lib/oracle-sql-parser/grammar/select.rb', line 1214

def _nt_join_clause
  start_index = index
  if node_cache[:join_clause].has_key?(index)
    cached = node_cache[:join_clause][index]
    if cached
      node_cache[:join_clause][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0, s0 = index, []
  r1 = _nt_table_reference
  s0 << r1
  if r1
    r2 = _nt_space
    s0 << r2
    if r2
      i3 = index
      r4 = _nt_outer_join_clause
      if r4
        r4 = SyntaxNode.new(input, (index-1)...index) if r4 == true
        r3 = r4
      else
        r5 = _nt_inner_cross_join_clause
        if r5
          r5 = SyntaxNode.new(input, (index-1)...index) if r5 == true
          r3 = r5
        else
          @index = i3
          r3 = nil
        end
      end
      s0 << r3
    end
  end
  if s0.last
    r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
    r0.extend(JoinClause0)
    r0.extend(JoinClause1)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:join_clause][start_index] = r0

  r0
end

#_nt_model_clause ⇒ Object 



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# File 'lib/oracle-sql-parser/grammar/select.rb', line 3928

def _nt_model_clause
  start_index = index
  if node_cache[:model_clause].has_key?(index)
    cached = node_cache[:model_clause][index]
    if cached
      node_cache[:model_clause][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  if (match_len = has_terminal?('model_clause', false, index))
    r0 = instantiate_node(SyntaxNode,input, index...(index + match_len))
    r0.extend(ModelClause0)
    @index += match_len
  else
    terminal_parse_failure('\'model_clause\'')
    r0 = nil
  end

  node_cache[:model_clause][start_index] = r0

  r0
end

#_nt_on_clause ⇒ Object 



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# File 'lib/oracle-sql-parser/grammar/select.rb', line 1492

def _nt_on_clause
  start_index = index
  if node_cache[:on_clause].has_key?(index)
    cached = node_cache[:on_clause][index]
    if cached
      node_cache[:on_clause][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0, s0 = index, []
  r1 = _nt_on_keyword
  s0 << r1
  if r1
    r3 = _nt_space
    if r3
      r2 = r3
    else
      r2 = instantiate_node(SyntaxNode,input, index...index)
    end
    s0 << r2
    if r2
      r4 = _nt_condition
      s0 << r4
    end
  end
  if s0.last
    r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
    r0.extend(OnClause0)
    r0.extend(OnClause1)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:on_clause][start_index] = r0

  r0
end

#_nt_on_or_using_clause ⇒ Object 



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# File 'lib/oracle-sql-parser/grammar/select.rb', line 1439

def _nt_on_or_using_clause
  start_index = index
  if node_cache[:on_or_using_clause].has_key?(index)
    cached = node_cache[:on_or_using_clause][index]
    if cached
      node_cache[:on_or_using_clause][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0 = index
  r1 = _nt_on_clause
  if r1
    r1 = SyntaxNode.new(input, (index-1)...index) if r1 == true
    r0 = r1
  else
    r2 = _nt_using_clause
    r2.extend(OnOrUsingClause0)
    r2.extend(OnOrUsingClause0)
    if r2
      r2 = SyntaxNode.new(input, (index-1)...index) if r2 == true
      r0 = r2
    else
      @index = i0
      r0 = nil
    end
  end

  node_cache[:on_or_using_clause][start_index] = r0

  r0
end

#_nt_order_by_clause ⇒ Object 



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# File 'lib/oracle-sql-parser/grammar/select.rb', line 2834

def _nt_order_by_clause
  start_index = index
  if node_cache[:order_by_clause].has_key?(index)
    cached = node_cache[:order_by_clause][index]
    if cached
      node_cache[:order_by_clause][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0, s0 = index, []
  r1 = _nt_order_keyword
  s0 << r1
  if r1
    r2 = _nt_space
    s0 << r2
    if r2
      r4 = _nt_siblings_keyword
      if r4
        r3 = r4
      else
        r3 = instantiate_node(SyntaxNode,input, index...index)
      end
      s0 << r3
      if r3
        r6 = _nt_space
        if r6
          r5 = r6
        else
          r5 = instantiate_node(SyntaxNode,input, index...index)
        end
        s0 << r5
        if r5
          r7 = _nt_by_keyword
          s0 << r7
          if r7
            r8 = _nt_space
            s0 << r8
            if r8
              r9 = _nt_order_by_clause_items
              s0 << r9
            end
          end
        end
      end
    end
  end
  if s0.last
    r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
    r0.extend(OrderByClause0)
    r0.extend(OrderByClause1)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:order_by_clause][start_index] = r0

  r0
end

#_nt_order_by_clause_item ⇒ Object 



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# File 'lib/oracle-sql-parser/grammar/select.rb', line 3058

def _nt_order_by_clause_item
  start_index = index
  if node_cache[:order_by_clause_item].has_key?(index)
    cached = node_cache[:order_by_clause_item][index]
    if cached
      node_cache[:order_by_clause_item][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0, s0 = index, []
  i1 = index
  r2 = _nt_expr
  if r2
    r2 = SyntaxNode.new(input, (index-1)...index) if r2 == true
    r1 = r2
  else
    r3 = _nt_position
    if r3
      r3 = SyntaxNode.new(input, (index-1)...index) if r3 == true
      r1 = r3
    else
      r4 = _nt_c_alias
      if r4
        r4 = SyntaxNode.new(input, (index-1)...index) if r4 == true
        r1 = r4
      else
        @index = i1
        r1 = nil
      end
    end
  end
  s0 << r1
  if r1
    r6 = _nt_space
    if r6
      r5 = r6
    else
      r5 = instantiate_node(SyntaxNode,input, index...index)
    end
    s0 << r5
    if r5
      i8 = index
      r9 = _nt_asc_keyword
      if r9
        r9 = SyntaxNode.new(input, (index-1)...index) if r9 == true
        r8 = r9
      else
        r10 = _nt_desc_keyword
        if r10
          r10 = SyntaxNode.new(input, (index-1)...index) if r10 == true
          r8 = r10
        else
          @index = i8
          r8 = nil
        end
      end
      if r8
        r7 = r8
      else
        r7 = instantiate_node(SyntaxNode,input, index...index)
      end
      s0 << r7
      if r7
        r12 = _nt_space
        if r12
          r11 = r12
        else
          r11 = instantiate_node(SyntaxNode,input, index...index)
        end
        s0 << r11
        if r11
          i14, s14 = index, []
          r15 = _nt_nulls_keyword
          s14 << r15
          if r15
            r16 = _nt_space
            s14 << r16
            if r16
              i17 = index
              r18 = _nt_first_keyword
              if r18
                r18 = SyntaxNode.new(input, (index-1)...index) if r18 == true
                r17 = r18
              else
                r19 = _nt_last_keyword
                if r19
                  r19 = SyntaxNode.new(input, (index-1)...index) if r19 == true
                  r17 = r19
                else
                  @index = i17
                  r17 = nil
                end
              end
              s14 << r17
            end
          end
          if s14.last
            r14 = instantiate_node(SyntaxNode,input, i14...index, s14)
            r14.extend(OrderByClauseItem0)
          else
            @index = i14
            r14 = nil
          end
          if r14
            r13 = r14
          else
            r13 = instantiate_node(SyntaxNode,input, index...index)
          end
          s0 << r13
        end
      end
    end
  end
  if s0.last
    r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
    r0.extend(OrderByClauseItem1)
    r0.extend(OrderByClauseItem2)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:order_by_clause_item][start_index] = r0

  r0
end

#_nt_order_by_clause_items ⇒ Object 



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# File 'lib/oracle-sql-parser/grammar/select.rb', line 2925

def _nt_order_by_clause_items
  start_index = index
  if node_cache[:order_by_clause_items].has_key?(index)
    cached = node_cache[:order_by_clause_items][index]
    if cached
      node_cache[:order_by_clause_items][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0, s0 = index, []
  r1 = _nt_order_by_clause_item
  s0 << r1
  if r1
    s2, i2 = [], index
    loop do
      i3, s3 = index, []
      r5 = _nt_space
      if r5
        r4 = r5
      else
        r4 = instantiate_node(SyntaxNode,input, index...index)
      end
      s3 << r4
      if r4
        if (match_len = has_terminal?(',', false, index))
          r6 = true
          @index += match_len
        else
          terminal_parse_failure('\',\'')
          r6 = nil
        end
        s3 << r6
        if r6
          r8 = _nt_space
          if r8
            r7 = r8
          else
            r7 = instantiate_node(SyntaxNode,input, index...index)
          end
          s3 << r7
          if r7
            r9 = _nt_order_by_clause_item
            s3 << r9
            if r9
              r11 = _nt_space
              if r11
                r10 = r11
              else
                r10 = instantiate_node(SyntaxNode,input, index...index)
              end
              s3 << r10
            end
          end
        end
      end
      if s3.last
        r3 = instantiate_node(SyntaxNode,input, i3...index, s3)
        r3.extend(OrderByClauseItems0)
      else
        @index = i3
        r3 = nil
      end
      if r3
        s2 << r3
      else
        break
      end
    end
    r2 = instantiate_node(SyntaxNode,input, i2...index, s2)
    s0 << r2
  end
  if s0.last
    r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
    r0.extend(OrderByClauseItems1)
    r0.extend(OrderByClauseItems2)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:order_by_clause_items][start_index] = r0

  r0
end

#_nt_outer_join_clause ⇒ Object 



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# File 'lib/oracle-sql-parser/grammar/select.rb', line 2001

def _nt_outer_join_clause
  start_index = index
  if node_cache[:outer_join_clause].has_key?(index)
    cached = node_cache[:outer_join_clause][index]
    if cached
      node_cache[:outer_join_clause][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0, s0 = index, []
  r2 = _nt_query_partition_clause
  if r2
    r1 = r2
  else
    r1 = instantiate_node(SyntaxNode,input, index...index)
  end
  s0 << r1
  if r1
    i3, s3 = index, []
    r5 = _nt_natural_keyword
    if r5
      r4 = r5
    else
      r4 = instantiate_node(SyntaxNode,input, index...index)
    end
    s3 << r4
    if r4
      r7 = _nt_space
      if r7
        r6 = r7
      else
        r6 = instantiate_node(SyntaxNode,input, index...index)
      end
      s3 << r6
      if r6
        r9 = _nt_outer_join_type
        if r9
          r8 = r9
        else
          r8 = instantiate_node(SyntaxNode,input, index...index)
        end
        s3 << r8
        if r8
          r11 = _nt_space
          if r11
            r10 = r11
          else
            r10 = instantiate_node(SyntaxNode,input, index...index)
          end
          s3 << r10
          if r10
            r12 = _nt_join_keyword
            s3 << r12
          end
        end
      end
    end
    if s3.last
      r3 = instantiate_node(SyntaxNode,input, i3...index, s3)
      r3.extend(OuterJoinClause0)
    else
      @index = i3
      r3 = nil
    end
    s0 << r3
    if r3
      r13 = _nt_space
      s0 << r13
      if r13
        r14 = _nt_table_reference
        s0 << r14
        if r14
          r15 = _nt_space
          s0 << r15
          if r15
            i17, s17 = index, []
            r18 = _nt_query_partition_clause
            s17 << r18
            if r18
              r19 = _nt_space
              s17 << r19
            end
            if s17.last
              r17 = instantiate_node(SyntaxNode,input, i17...index, s17)
              r17.extend(OuterJoinClause1)
            else
              @index = i17
              r17 = nil
            end
            if r17
              r16 = r17
            else
              r16 = instantiate_node(SyntaxNode,input, index...index)
            end
            s0 << r16
            if r16
              r20 = _nt_on_or_using_clause
              s0 << r20
            end
          end
        end
      end
    end
  end
  if s0.last
    r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
    r0.extend(OuterJoinClause2)
    r0.extend(OuterJoinClause3)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:outer_join_clause][start_index] = r0

  r0
end

#_nt_outer_join_type ⇒ Object 



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# File 'lib/oracle-sql-parser/grammar/select.rb', line 2178

def _nt_outer_join_type
  start_index = index
  if node_cache[:outer_join_type].has_key?(index)
    cached = node_cache[:outer_join_type][index]
    if cached
      node_cache[:outer_join_type][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0, s0 = index, []
  i1 = index
  r2 = _nt_full_keyword
  if r2
    r2 = SyntaxNode.new(input, (index-1)...index) if r2 == true
    r1 = r2
  else
    r3 = _nt_left_keyword
    if r3
      r3 = SyntaxNode.new(input, (index-1)...index) if r3 == true
      r1 = r3
    else
      r4 = _nt_right_keyword
      if r4
        r4 = SyntaxNode.new(input, (index-1)...index) if r4 == true
        r1 = r4
      else
        @index = i1
        r1 = nil
      end
    end
  end
  s0 << r1
  if r1
    i6, s6 = index, []
    r7 = _nt_space
    s6 << r7
    if r7
      r8 = _nt_outer_keyword
      s6 << r8
    end
    if s6.last
      r6 = instantiate_node(SyntaxNode,input, i6...index, s6)
      r6.extend(OuterJoinType0)
    else
      @index = i6
      r6 = nil
    end
    if r6
      r5 = r6
    else
      r5 = instantiate_node(SyntaxNode,input, index...index)
    end
    s0 << r5
  end
  if s0.last
    r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
    r0.extend(OuterJoinType1)
    r0.extend(OuterJoinType2)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:outer_join_type][start_index] = r0

  r0
end

#_nt_query_block ⇒ Object 



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# File 'lib/oracle-sql-parser/grammar/select.rb', line 770

def _nt_query_block
  start_index = index
  if node_cache[:query_block].has_key?(index)
    cached = node_cache[:query_block][index]
    if cached
      node_cache[:query_block][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0, s0 = index, []
  i2, s2 = index, []
  r3 = _nt_subquery_factoring_clause
  s2 << r3
  if r3
    r4 = _nt_space
    s2 << r4
  end
  if s2.last
    r2 = instantiate_node(SyntaxNode,input, i2...index, s2)
    r2.extend(QueryBlock0)
  else
    @index = i2
    r2 = nil
  end
  if r2
    r1 = r2
  else
    r1 = instantiate_node(SyntaxNode,input, index...index)
  end
  s0 << r1
  if r1
    r5 = _nt_select_keyword
    s0 << r5
    if r5
      r6 = _nt_space
      s0 << r6
      if r6
        r8 = _nt_hint
        if r8
          r7 = r8
        else
          r7 = instantiate_node(SyntaxNode,input, index...index)
        end
        s0 << r7
        if r7
          i10, s10 = index, []
          i11 = index
          r12 = _nt_all_keyword
          if r12
            r12 = SyntaxNode.new(input, (index-1)...index) if r12 == true
            r11 = r12
          else
            r13 = _nt_distinct_keyword
            if r13
              r13 = SyntaxNode.new(input, (index-1)...index) if r13 == true
              r11 = r13
            else
              r14 = _nt_unique_keyword
              if r14
                r14 = SyntaxNode.new(input, (index-1)...index) if r14 == true
                r11 = r14
              else
                @index = i11
                r11 = nil
              end
            end
          end
          s10 << r11
          if r11
            r15 = _nt_space
            s10 << r15
          end
          if s10.last
            r10 = instantiate_node(SyntaxNode,input, i10...index, s10)
            r10.extend(QueryBlock1)
          else
            @index = i10
            r10 = nil
          end
          if r10
            r9 = r10
          else
            r9 = instantiate_node(SyntaxNode,input, index...index)
          end
          s0 << r9
          if r9
            r16 = _nt_select_list
            s0 << r16
            if r16
              r17 = _nt_space
              s0 << r17
              if r17
                r18 = _nt_from_keyword
                s0 << r18
                if r18
                  i20, s20 = index, []
                  r21 = _nt_space
                  s20 << r21
                  if r21
                    r22 = _nt_select_sources
                    s20 << r22
                  end
                  if s20.last
                    r20 = instantiate_node(SyntaxNode,input, i20...index, s20)
                    r20.extend(QueryBlock2)
                  else
                    @index = i20
                    r20 = nil
                  end
                  if r20
                    r19 = r20
                  else
                    r19 = instantiate_node(SyntaxNode,input, index...index)
                  end
                  s0 << r19
                  if r19
                    i24, s24 = index, []
                    r25 = _nt_space
                    s24 << r25
                    if r25
                      r26 = _nt_where_clause
                      s24 << r26
                    end
                    if s24.last
                      r24 = instantiate_node(SyntaxNode,input, i24...index, s24)
                      r24.extend(QueryBlock3)
                    else
                      @index = i24
                      r24 = nil
                    end
                    if r24
                      r23 = r24
                    else
                      r23 = instantiate_node(SyntaxNode,input, index...index)
                    end
                    s0 << r23
                    if r23
                      i28, s28 = index, []
                      r29 = _nt_space
                      s28 << r29
                      if r29
                        r30 = _nt_group_by_clause
                        s28 << r30
                      end
                      if s28.last
                        r28 = instantiate_node(SyntaxNode,input, i28...index, s28)
                        r28.extend(QueryBlock4)
                      else
                        @index = i28
                        r28 = nil
                      end
                      if r28
                        r27 = r28
                      else
                        r27 = instantiate_node(SyntaxNode,input, index...index)
                      end
                      s0 << r27
                      if r27
                        i32, s32 = index, []
                        r33 = _nt_space
                        s32 << r33
                        if r33
                          r34 = _nt_model_clause
                          s32 << r34
                        end
                        if s32.last
                          r32 = instantiate_node(SyntaxNode,input, i32...index, s32)
                          r32.extend(QueryBlock5)
                        else
                          @index = i32
                          r32 = nil
                        end
                        if r32
                          r31 = r32
                        else
                          r31 = instantiate_node(SyntaxNode,input, index...index)
                        end
                        s0 << r31
                      end
                    end
                  end
                end
              end
            end
          end
        end
      end
    end
  end
  if s0.last
    r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
    r0.extend(QueryBlock6)
    r0.extend(QueryBlock7)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:query_block][start_index] = r0

  r0
end

#_nt_query_partition_clause ⇒ Object 



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# File 'lib/oracle-sql-parser/grammar/select.rb', line 2127

def _nt_query_partition_clause
  start_index = index
  if node_cache[:query_partition_clause].has_key?(index)
    cached = node_cache[:query_partition_clause][index]
    if cached
      node_cache[:query_partition_clause][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  if (match_len = has_terminal?('query_partition_clause', false, index))
    r0 = instantiate_node(SyntaxNode,input, index...(index + match_len))
    r0.extend(QueryPartitionClause0)
    @index += match_len
  else
    terminal_parse_failure('\'query_partition_clause\'')
    r0 = nil
  end

  node_cache[:query_partition_clause][start_index] = r0

  r0
end

#_nt_rollup_cube_clause ⇒ Object 



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# File 'lib/oracle-sql-parser/grammar/select.rb', line 3809

def _nt_rollup_cube_clause
  start_index = index
  if node_cache[:rollup_cube_clause].has_key?(index)
    cached = node_cache[:rollup_cube_clause][index]
    if cached
      node_cache[:rollup_cube_clause][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0, s0 = index, []
  i1 = index
  r2 = _nt_rollup_keyword
  if r2
    r2 = SyntaxNode.new(input, (index-1)...index) if r2 == true
    r1 = r2
  else
    r3 = _nt_cube_keyword
    if r3
      r3 = SyntaxNode.new(input, (index-1)...index) if r3 == true
      r1 = r3
    else
      @index = i1
      r1 = nil
    end
  end
  s0 << r1
  if r1
    r5 = _nt_space
    if r5
      r4 = r5
    else
      r4 = instantiate_node(SyntaxNode,input, index...index)
    end
    s0 << r4
    if r4
      r6 = _nt_grouping_expression_list
      s0 << r6
    end
  end
  if s0.last
    r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
    r0.extend(RollupCubeClause0)
    r0.extend(RollupCubeClause1)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:rollup_cube_clause][start_index] = r0

  r0
end

#_nt_select_column ⇒ Object 



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# File 'lib/oracle-sql-parser/grammar/select.rb', line 3465

def _nt_select_column
  start_index = index
  if node_cache[:select_column].has_key?(index)
    cached = node_cache[:select_column][index]
    if cached
      node_cache[:select_column][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0, s0 = index, []
  r1 = _nt_expr
  s0 << r1
  if r1
    i3, s3 = index, []
    r4 = _nt_space
    s3 << r4
    if r4
      i6, s6 = index, []
      r7 = _nt_as_keyword
      s6 << r7
      if r7
        r8 = _nt_space
        s6 << r8
      end
      if s6.last
        r6 = instantiate_node(SyntaxNode,input, i6...index, s6)
        r6.extend(SelectColumn0)
      else
        @index = i6
        r6 = nil
      end
      if r6
        r5 = r6
      else
        r5 = instantiate_node(SyntaxNode,input, index...index)
      end
      s3 << r5
      if r5
        r9 = _nt_c_alias
        s3 << r9
      end
    end
    if s3.last
      r3 = instantiate_node(SyntaxNode,input, i3...index, s3)
      r3.extend(SelectColumn1)
    else
      @index = i3
      r3 = nil
    end
    if r3
      r2 = r3
    else
      r2 = instantiate_node(SyntaxNode,input, index...index)
    end
    s0 << r2
  end
  if s0.last
    r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
    r0.extend(SelectColumn2)
    r0.extend(SelectColumn3)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:select_column][start_index] = r0

  r0
end

#_nt_select_list ⇒ Object 



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# File 'lib/oracle-sql-parser/grammar/select.rb', line 3213

def _nt_select_list
  start_index = index
  if node_cache[:select_list].has_key?(index)
    cached = node_cache[:select_list][index]
    if cached
      node_cache[:select_list][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0, s0 = index, []
  r1 = _nt_select_one
  s0 << r1
  if r1
    s2, i2 = [], index
    loop do
      i3, s3 = index, []
      r5 = _nt_space
      if r5
        r4 = r5
      else
        r4 = instantiate_node(SyntaxNode,input, index...index)
      end
      s3 << r4
      if r4
        if (match_len = has_terminal?(',', false, index))
          r6 = true
          @index += match_len
        else
          terminal_parse_failure('\',\'')
          r6 = nil
        end
        s3 << r6
        if r6
          r8 = _nt_space
          if r8
            r7 = r8
          else
            r7 = instantiate_node(SyntaxNode,input, index...index)
          end
          s3 << r7
          if r7
            r9 = _nt_select_one
            s3 << r9
          end
        end
      end
      if s3.last
        r3 = instantiate_node(SyntaxNode,input, i3...index, s3)
        r3.extend(SelectList0)
      else
        @index = i3
        r3 = nil
      end
      if r3
        s2 << r3
      else
        break
      end
    end
    r2 = instantiate_node(SyntaxNode,input, i2...index, s2)
    s0 << r2
  end
  if s0.last
    r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
    r0.extend(SelectList1)
    r0.extend(SelectList2)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:select_list][start_index] = r0

  r0
end

#_nt_select_one ⇒ Object 



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# File 'lib/oracle-sql-parser/grammar/select.rb', line 3297

def _nt_select_one
  start_index = index
  if node_cache[:select_one].has_key?(index)
    cached = node_cache[:select_one][index]
    if cached
      node_cache[:select_one][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0 = index
  r1 = _nt_select_table
  if r1
    r1 = SyntaxNode.new(input, (index-1)...index) if r1 == true
    r0 = r1
  else
    r2 = _nt_select_column
    r2.extend(SelectOne0)
    r2.extend(SelectOne0)
    if r2
      r2 = SyntaxNode.new(input, (index-1)...index) if r2 == true
      r0 = r2
    else
      @index = i0
      r0 = nil
    end
  end

  node_cache[:select_one][start_index] = r0

  r0
end

#_nt_select_source ⇒ Object 



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# File 'lib/oracle-sql-parser/grammar/select.rb', line 1099

def _nt_select_source
  start_index = index
  if node_cache[:select_source].has_key?(index)
    cached = node_cache[:select_source][index]
    if cached
      node_cache[:select_source][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0 = index
  r1 = _nt_join_clause
  if r1
    r1 = SyntaxNode.new(input, (index-1)...index) if r1 == true
    r0 = r1
  else
    i2, s2 = index, []
    if (match_len = has_terminal?('(', false, index))
      r3 = true
      @index += match_len
    else
      terminal_parse_failure('\'(\'')
      r3 = nil
    end
    s2 << r3
    if r3
      r5 = _nt_space
      if r5
        r4 = r5
      else
        r4 = instantiate_node(SyntaxNode,input, index...index)
      end
      s2 << r4
      if r4
        r6 = _nt_join_clause
        s2 << r6
        if r6
          r8 = _nt_space
          if r8
            r7 = r8
          else
            r7 = instantiate_node(SyntaxNode,input, index...index)
          end
          s2 << r7
          if r7
            if (match_len = has_terminal?(')', false, index))
              r9 = true
              @index += match_len
            else
              terminal_parse_failure('\')\'')
              r9 = nil
            end
            s2 << r9
          end
        end
      end
    end
    if s2.last
      r2 = instantiate_node(SyntaxNode,input, i2...index, s2)
      r2.extend(SelectSource0)
    else
      @index = i2
      r2 = nil
    end
    if r2
      r2 = SyntaxNode.new(input, (index-1)...index) if r2 == true
      r0 = r2
    else
      r10 = _nt_table_reference
      if r10
        r10 = SyntaxNode.new(input, (index-1)...index) if r10 == true
        r0 = r10
      else
        r11 = _nt_subquery
        r11.extend(SelectSource1)
        r11.extend(SelectSource1)
        if r11
          r11 = SyntaxNode.new(input, (index-1)...index) if r11 == true
          r0 = r11
        else
          @index = i0
          r0 = nil
        end
      end
    end
  end

  node_cache[:select_source][start_index] = r0

  r0
end

#_nt_select_sources ⇒ Object 



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# File 'lib/oracle-sql-parser/grammar/select.rb', line 1004

def _nt_select_sources
  start_index = index
  if node_cache[:select_sources].has_key?(index)
    cached = node_cache[:select_sources][index]
    if cached
      node_cache[:select_sources][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0, s0 = index, []
  r1 = _nt_select_source
  s0 << r1
  if r1
    s2, i2 = [], index
    loop do
      i3, s3 = index, []
      r5 = _nt_space
      if r5
        r4 = r5
      else
        r4 = instantiate_node(SyntaxNode,input, index...index)
      end
      s3 << r4
      if r4
        if (match_len = has_terminal?(',', false, index))
          r6 = true
          @index += match_len
        else
          terminal_parse_failure('\',\'')
          r6 = nil
        end
        s3 << r6
        if r6
          r8 = _nt_space
          if r8
            r7 = r8
          else
            r7 = instantiate_node(SyntaxNode,input, index...index)
          end
          s3 << r7
          if r7
            r9 = _nt_select_source
            s3 << r9
          end
        end
      end
      if s3.last
        r3 = instantiate_node(SyntaxNode,input, i3...index, s3)
        r3.extend(SelectSources0)
      else
        @index = i3
        r3 = nil
      end
      if r3
        s2 << r3
      else
        break
      end
    end
    r2 = instantiate_node(SyntaxNode,input, i2...index, s2)
    s0 << r2
  end
  if s0.last
    r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
    r0.extend(SelectSources1)
    r0.extend(SelectSources2)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:select_sources][start_index] = r0

  r0
end

#_nt_select_statement ⇒ Object 



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# File 'lib/oracle-sql-parser/grammar/select.rb', line 42

def _nt_select_statement
  start_index = index
  if node_cache[:select_statement].has_key?(index)
    cached = node_cache[:select_statement][index]
    if cached
      node_cache[:select_statement][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0, s0 = index, []
  r2 = _nt_space
  if r2
    r1 = r2
  else
    r1 = instantiate_node(SyntaxNode,input, index...index)
  end
  s0 << r1
  if r1
    r3 = _nt_subquery
    s0 << r3
    if r3
      i5, s5 = index, []
      r6 = _nt_space
      s5 << r6
      if r6
        r7 = _nt_for_update_clause
        s5 << r7
      end
      if s5.last
        r5 = instantiate_node(SyntaxNode,input, i5...index, s5)
        r5.extend(SelectStatement0)
      else
        @index = i5
        r5 = nil
      end
      if r5
        r4 = r5
      else
        r4 = instantiate_node(SyntaxNode,input, index...index)
      end
      s0 << r4
      if r4
        r9 = _nt_space
        if r9
          r8 = r9
        else
          r8 = instantiate_node(SyntaxNode,input, index...index)
        end
        s0 << r8
      end
    end
  end
  if s0.last
    r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
    r0.extend(SelectStatement1)
    r0.extend(SelectStatement2)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:select_statement][start_index] = r0

  r0
end

#_nt_select_table ⇒ Object 



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# File 'lib/oracle-sql-parser/grammar/select.rb', line 3347

def _nt_select_table
  start_index = index
  if node_cache[:select_table].has_key?(index)
    cached = node_cache[:select_table][index]
    if cached
      node_cache[:select_table][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0, s0 = index, []
  i2, s2 = index, []
  r3 = _nt_table_name
  s2 << r3
  if r3
    if (match_len = has_terminal?('.', false, index))
      r4 = true
      @index += match_len
    else
      terminal_parse_failure('\'.\'')
      r4 = nil
    end
    s2 << r4
  end
  if s2.last
    r2 = instantiate_node(SyntaxNode,input, i2...index, s2)
    r2.extend(SelectTable0)
  else
    @index = i2
    r2 = nil
  end
  if r2
    r1 = r2
  else
    r1 = instantiate_node(SyntaxNode,input, index...index)
  end
  s0 << r1
  if r1
    if (match_len = has_terminal?('*', false, index))
      r5 = true
      @index += match_len
    else
      terminal_parse_failure('\'*\'')
      r5 = nil
    end
    s0 << r5
  end
  if s0.last
    r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
    r0.extend(SelectTable1)
    r0.extend(SelectTable2)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:select_table][start_index] = r0

  r0
end

#_nt_subqueries_with_union ⇒ Object 



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# File 'lib/oracle-sql-parser/grammar/select.rb', line 390

def _nt_subqueries_with_union
  start_index = index
  if node_cache[:subqueries_with_union].has_key?(index)
    cached = node_cache[:subqueries_with_union][index]
    if cached
      node_cache[:subqueries_with_union][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0, s0 = index, []
  r1 = _nt_query_block
  s0 << r1
  if r1
    r3 = _nt_space
    if r3
      r2 = r3
    else
      r2 = instantiate_node(SyntaxNode,input, index...index)
    end
    s0 << r2
    if r2
      s4, i4 = [], index
      loop do
        i5, s5 = index, []
        r6 = _nt_union_or_intersect_or_minus
        s5 << r6
        if r6
          r8 = _nt_space
          if r8
            r7 = r8
          else
            r7 = instantiate_node(SyntaxNode,input, index...index)
          end
          s5 << r7
          if r7
            r9 = _nt_subquery
            s5 << r9
          end
        end
        if s5.last
          r5 = instantiate_node(SyntaxNode,input, i5...index, s5)
          r5.extend(SubqueriesWithUnion0)
        else
          @index = i5
          r5 = nil
        end
        if r5
          s4 << r5
        else
          break
        end
      end
      if s4.empty?
        @index = i4
        r4 = nil
      else
        r4 = instantiate_node(SyntaxNode,input, i4...index, s4)
      end
      s0 << r4
    end
  end
  if s0.last
    r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
    r0.extend(SubqueriesWithUnion1)
    r0.extend(SubqueriesWithUnion2)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:subqueries_with_union][start_index] = r0

  r0
end

#_nt_subquery ⇒ Object 



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# File 'lib/oracle-sql-parser/grammar/select.rb', line 195

def _nt_subquery
  start_index = index
  if node_cache[:subquery].has_key?(index)
    cached = node_cache[:subquery][index]
    if cached
      node_cache[:subquery][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0, s0 = index, []
  i1 = index
  i2, s2 = index, []
  if (match_len = has_terminal?('(', false, index))
    r3 = true
    @index += match_len
  else
    terminal_parse_failure('\'(\'')
    r3 = nil
  end
  s2 << r3
  if r3
    r5 = _nt_space
    if r5
      r4 = r5
    else
      r4 = instantiate_node(SyntaxNode,input, index...index)
    end
    s2 << r4
    if r4
      r6 = _nt_subquery
      s2 << r6
      if r6
        r8 = _nt_space
        if r8
          r7 = r8
        else
          r7 = instantiate_node(SyntaxNode,input, index...index)
        end
        s2 << r7
        if r7
          if (match_len = has_terminal?(')', false, index))
            r9 = true
            @index += match_len
          else
            terminal_parse_failure('\')\'')
            r9 = nil
          end
          s2 << r9
        end
      end
    end
  end
  if s2.last
    r2 = instantiate_node(SyntaxNode,input, i2...index, s2)
    r2.extend(Subquery0)
  else
    @index = i2
    r2 = nil
  end
  if r2
    r2 = SyntaxNode.new(input, (index-1)...index) if r2 == true
    r1 = r2
  else
    i10, s10 = index, []
    r11 = _nt_query_block
    s10 << r11
    if r11
      i12 = index
      i13, s13 = index, []
      r14 = _nt_space
      s13 << r14
      if r14
        r15 = _nt_union_or_intersect_or_minus
        s13 << r15
      end
      if s13.last
        r13 = instantiate_node(SyntaxNode,input, i13...index, s13)
        r13.extend(Subquery1)
      else
        @index = i13
        r13 = nil
      end
      if r13
        @index = i12
        r12 = nil
        terminal_parse_failure("<a sequence>", true)
      else
        @terminal_failures.pop
        @index = i12
        r12 = instantiate_node(SyntaxNode,input, index...index)
      end
      s10 << r12
    end
    if s10.last
      r10 = instantiate_node(SyntaxNode,input, i10...index, s10)
      r10.extend(Subquery2)
    else
      @index = i10
      r10 = nil
    end
    if r10
      r10 = SyntaxNode.new(input, (index-1)...index) if r10 == true
      r1 = r10
    else
      i16, s16 = index, []
      r17 = _nt_subqueries_with_union
      s16 << r17
      if s16.last
        r16 = instantiate_node(SyntaxNode,input, i16...index, s16)
        r16.extend(Subquery3)
      else
        @index = i16
        r16 = nil
      end
      if r16
        r16 = SyntaxNode.new(input, (index-1)...index) if r16 == true
        r1 = r16
      else
        @index = i1
        r1 = nil
      end
    end
  end
  s0 << r1
  if r1
    i19, s19 = index, []
    r20 = _nt_space
    s19 << r20
    if r20
      r21 = _nt_order_by_clause
      s19 << r21
    end
    if s19.last
      r19 = instantiate_node(SyntaxNode,input, i19...index, s19)
      r19.extend(Subquery4)
    else
      @index = i19
      r19 = nil
    end
    if r19
      r18 = r19
    else
      r18 = instantiate_node(SyntaxNode,input, index...index)
    end
    s0 << r18
  end
  if s0.last
    r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
    r0.extend(Subquery5)
    r0.extend(Subquery6)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:subquery][start_index] = r0

  r0
end

#_nt_subquery_factoring_clause ⇒ Object 



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# File 'lib/oracle-sql-parser/grammar/select.rb', line 2774

def _nt_subquery_factoring_clause
  start_index = index
  if node_cache[:subquery_factoring_clause].has_key?(index)
    cached = node_cache[:subquery_factoring_clause][index]
    if cached
      node_cache[:subquery_factoring_clause][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  if (match_len = has_terminal?('subquery_factoring_clause', false, index))
    r0 = instantiate_node(SyntaxNode,input, index...(index + match_len))
    r0.extend(SubqueryFactoringClause0)
    @index += match_len
  else
    terminal_parse_failure('\'subquery_factoring_clause\'')
    r0 = nil
  end

  node_cache[:subquery_factoring_clause][start_index] = r0

  r0
end

#_nt_union_all ⇒ Object 



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# File 'lib/oracle-sql-parser/grammar/select.rb', line 597

def _nt_union_all
  start_index = index
  if node_cache[:union_all].has_key?(index)
    cached = node_cache[:union_all][index]
    if cached
      node_cache[:union_all][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0, s0 = index, []
  r1 = _nt_union_keyword
  s0 << r1
  if r1
    i3, s3 = index, []
    r4 = _nt_space
    s3 << r4
    if r4
      r5 = _nt_all_keyword
      s3 << r5
    end
    if s3.last
      r3 = instantiate_node(SyntaxNode,input, i3...index, s3)
      r3.extend(UnionAll0)
    else
      @index = i3
      r3 = nil
    end
    if r3
      r2 = r3
    else
      r2 = instantiate_node(SyntaxNode,input, index...index)
    end
    s0 << r2
  end
  if s0.last
    r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
    r0.extend(UnionAll1)
    r0.extend(UnionAll2)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:union_all][start_index] = r0

  r0
end

#_nt_union_or_intersect_or_minus ⇒ Object 



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# File 'lib/oracle-sql-parser/grammar/select.rb', line 497

def _nt_union_or_intersect_or_minus
  start_index = index
  if node_cache[:union_or_intersect_or_minus].has_key?(index)
    cached = node_cache[:union_or_intersect_or_minus][index]
    if cached
      node_cache[:union_or_intersect_or_minus][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0 = index
  i1, s1 = index, []
  r2 = _nt_union_all
  s1 << r2
  if s1.last
    r1 = instantiate_node(SyntaxNode,input, i1...index, s1)
    r1.extend(UnionOrIntersectOrMinus0)
  else
    @index = i1
    r1 = nil
  end
  if r1
    r1 = SyntaxNode.new(input, (index-1)...index) if r1 == true
    r0 = r1
    r0.extend(UnionOrIntersectOrMinus3)
    r0.extend(UnionOrIntersectOrMinus3)
  else
    i3, s3 = index, []
    r4 = _nt_intersect_keyword
    s3 << r4
    if s3.last
      r3 = instantiate_node(SyntaxNode,input, i3...index, s3)
      r3.extend(UnionOrIntersectOrMinus1)
    else
      @index = i3
      r3 = nil
    end
    if r3
      r3 = SyntaxNode.new(input, (index-1)...index) if r3 == true
      r0 = r3
      r0.extend(UnionOrIntersectOrMinus3)
      r0.extend(UnionOrIntersectOrMinus3)
    else
      i5, s5 = index, []
      r6 = _nt_minus_keyword
      s5 << r6
      if s5.last
        r5 = instantiate_node(SyntaxNode,input, i5...index, s5)
        r5.extend(UnionOrIntersectOrMinus2)
      else
        @index = i5
        r5 = nil
      end
      if r5
        r5 = SyntaxNode.new(input, (index-1)...index) if r5 == true
        r0 = r5
        r0.extend(UnionOrIntersectOrMinus3)
        r0.extend(UnionOrIntersectOrMinus3)
      else
        @index = i0
        r0 = nil
      end
    end
  end

  node_cache[:union_or_intersect_or_minus][start_index] = r0

  r0
end

#_nt_using_clause ⇒ Object 



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# File 'lib/oracle-sql-parser/grammar/select.rb', line 1553

def _nt_using_clause
  start_index = index
  if node_cache[:using_clause].has_key?(index)
    cached = node_cache[:using_clause][index]
    if cached
      node_cache[:using_clause][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0, s0 = index, []
  r1 = _nt_using_keyword
  s0 << r1
  if r1
    r3 = _nt_space
    if r3
      r2 = r3
    else
      r2 = instantiate_node(SyntaxNode,input, index...index)
    end
    s0 << r2
    if r2
      if (match_len = has_terminal?('(', false, index))
        r4 = true
        @index += match_len
      else
        terminal_parse_failure('\'(\'')
        r4 = nil
      end
      s0 << r4
      if r4
        r6 = _nt_space
        if r6
          r5 = r6
        else
          r5 = instantiate_node(SyntaxNode,input, index...index)
        end
        s0 << r5
        if r5
          r7 = _nt_column_list
          s0 << r7
          if r7
            r9 = _nt_space
            if r9
              r8 = r9
            else
              r8 = instantiate_node(SyntaxNode,input, index...index)
            end
            s0 << r8
            if r8
              if (match_len = has_terminal?(')', false, index))
                r10 = true
                @index += match_len
              else
                terminal_parse_failure('\')\'')
                r10 = nil
              end
              s0 << r10
            end
          end
        end
      end
    end
  end
  if s0.last
    r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
    r0.extend(UsingClause0)
    r0.extend(UsingClause1)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:using_clause][start_index] = r0

  r0
end

#root ⇒ Object 



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# File 'lib/oracle-sql-parser/grammar/select.rb', line 8

def root
  @root ||= :select_statement
end