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postgresql/src/backend/parser
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Tom Lane c957c0bac7 Code review for XML patch. Instill a bit of sanity in the location of 
the XmlExpr code in various lists, use a representation that has some hope
of reverse-listing correctly (though it's still a de-escaping function
shy of correctness), generally try to make it look more like Postgres
coding conventions.
 		2006-12-24 00:29:20 +00:00
..
.cvsignore Add .cvsignore file so cvs doesn't complain if you have lex/yacc 1999-03-21 02:43:58 +00:00
Makefile Re-introduce the yylex filter function formerly used to support UNION 2006-05-27 17:38:46 +00:00
README cleanup 1998-08-23 14:43:46 +00:00
analyze.c Code review for LIKE INCLUDING CONSTRAINTS patch --- improve comments, 2006-10-11 16:42:59 +00:00
gram.y Code review for XML patch. Instill a bit of sanity in the location of 2006-12-24 00:29:20 +00:00
keywords.c Code review for XML patch. Instill a bit of sanity in the location of 2006-12-24 00:29:20 +00:00
parse_agg.c Add a paramtypmod field to Param nodes. This is dead weight for Params 2006-12-10 22:13:27 +00:00
parse_clause.c Code review for XML patch. Instill a bit of sanity in the location of 2006-12-24 00:29:20 +00:00
parse_coerce.c Code review for XML patch. Instill a bit of sanity in the location of 2006-12-24 00:29:20 +00:00
parse_expr.c Code review for XML patch. Instill a bit of sanity in the location of 2006-12-24 00:29:20 +00:00
parse_func.c pgindent run for 8.2. 2006-10-04 00:30:14 +00:00
parse_node.c pgindent run for 8.2. 2006-10-04 00:30:14 +00:00
parse_oper.c pgindent run for 8.2. 2006-10-04 00:30:14 +00:00
parse_relation.c pgindent run for 8.2. 2006-10-04 00:30:14 +00:00
parse_target.c Code review for XML patch. Instill a bit of sanity in the location of 2006-12-24 00:29:20 +00:00
parse_type.c pgindent run for 8.2. 2006-10-04 00:30:14 +00:00
parser.c pgindent run for 8.2. 2006-10-04 00:30:14 +00:00
scan.l Fix bugs in plpgsql and ecpg caused by assuming that isspace() would only 2006-09-22 21:39:58 +00:00
scansup.c Fix bugs in plpgsql and ecpg caused by assuming that isspace() would only 2006-09-22 21:39:58 +00:00

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