postgresql

History

Bruce Momjian b20fd6c42d FIx hasSubLinks for Vadim.		1998-02-06 16:46:29 +00:00
..
Makefile	Major cleanout of PORTNAME variables from Makefiles...bound to screw up	1997-12-20 00:29:35 +00:00
README	Add Var.varlevelup to code. More parser cleanup.	1998-01-20 22:12:17 +00:00
analyze.c	FIx hasSubLinks for Vadim.	1998-02-06 16:46:29 +00:00
gram.y	Allow most expressions in BETWEEN clause. Allow all expressions if	1998-02-04 06:11:48 +00:00
keywords.c	Allow most expressions in BETWEEN clause. Allow all expressions if	1998-02-04 06:11:48 +00:00
parse_agg.c	Parser cleanup.	1998-01-20 05:05:08 +00:00
parse_clause.c	FIx for regression-test found bug.	1998-01-20 22:55:25 +00:00
parse_expr.c	FIx hasSubLinks for Vadim.	1998-02-06 16:46:29 +00:00
parse_func.c	func_error() changed so that if caller is passed with NULL value, its	1998-02-05 04:08:44 +00:00
parse_node.c	Add Var.varlevelup to code. More parser cleanup.	1998-01-20 22:12:17 +00:00
parse_oper.c	Parser cleanup.	1998-01-20 05:05:08 +00:00
parse_relation.c	FIx for varchar(), char() and INSERT .. SELECT.	1998-02-05 22:48:44 +00:00
parse_target.c	Parser cleanup.	1998-01-20 05:05:08 +00:00
parse_type.c	New pg_attribute.atttypmod for type-specific information like	1998-01-16 23:21:07 +00:00
parser.c	Create SubLink nodes in parser for Vadim.	1998-01-19 05:06:41 +00:00
scan.c	Move all the isinf() stuff from float.c to isinf.c, and build it according to	1998-02-02 00:04:08 +00:00
scan.l	Change some ABORTS to ERROR. Add line number when COPY Failure.	1998-01-05 16:40:20 +00:00
scansup.c	Cleanup up include files.	1997-11-26 01:14:33 +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_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