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postgres/src/backend/parser
History
Tom Lane 077db40fa1
ALTER TABLE rewrite. New cool stuff: 		22 years ago
..
.cvsignore Add .cvsignore file so cvs doesn't complain if you have lex/yacc 27 years ago
Makefile $Header: -> $PostgreSQL Changes ... 22 years ago
README
…
analyze.c ALTER TABLE rewrite. New cool stuff: 22 years ago
gram.y ALTER TABLE rewrite. New cool stuff: 22 years ago
keywords.c Change COPY CSV keyword to be: 22 years ago
parse_agg.c Fix oversight in check_ungrouped_columns optimization that avoids 22 years ago
parse_clause.c Tweak findTargetlistEntry so that bare names occurring in GROUP BY clauses 22 years ago
parse_coerce.c Remove grotty special-case code in coerce_to_target_type() that 22 years ago
parse_expr.c Tweak findTargetlistEntry so that bare names occurring in GROUP BY clauses 22 years ago
parse_func.c Fix poor choice of error message in corner cases. 22 years ago
parse_node.c $Header: -> $PostgreSQL Changes ... 22 years ago
parse_oper.c $Header: -> $PostgreSQL Changes ... 22 years ago
parse_relation.c Tweak findTargetlistEntry so that bare names occurring in GROUP BY clauses 22 years ago
parse_target.c Get rid of crocky use of RangeVar nodes in parser to represent partially 22 years ago
parse_type.c Revise syntax-error reporting behavior to give pleasant results for 22 years ago
parser.c Replace max_expr_depth parameter with a max_stack_depth parameter that 22 years ago
scan.l Implement dollar-quoting in the backend lexer and psql. Documentation 22 years ago
scansup.c Implement a solution to the 'Turkish locale downcases I incorrectly' 22 years ago

README 

This directory does more than tokenize and parse SQL queries.  It also
creates Query structures for the various complex queries that is passed
to the optimizer and then executor.

parser.c	things start here
scan.l		break query into tokens
scansup.c	handle escapes in input
keywords.c	turn keywords into specific tokens
gram.y		parse the tokens and fill query-type-specific structures
analyze.c	handle post-parse processing for each query type
parse_clause.c	handle clauses like WHERE, ORDER BY, GROUP BY, ...
parse_coerce.c	used for coercing expressions of different types
parse_expr.c	handle expressions like col, col + 3, x = 3 or x = 4
parse_oper.c	handle operations in expressions
parse_agg.c	handle aggregates, like SUM(col1),  AVG(col2), ...
parse_func.c	handle functions, table.column and column identifiers
parse_node.c	create nodes for various structures
parse_target.c	handle the result list of the query
parse_relation.c support routines for tables and column handling
parse_type.c	support routines for type handling