postgresql

History

Thomas G. Lockhart 681c587d22 Do a better job of selecting candidates among functions when no exact match. Clean up elog error messages.		1999-02-23 07:51:53 +00:00
..
Makefile	From: t-ishii@sra.co.jp	1998-07-26 04:31:41 +00:00
README	cleanup	1998-08-23 14:43:46 +00:00
analyze.c	Put in explicit checks for implicit index name lengths.	1999-02-23 07:44:44 +00:00
gram.c	Final optimizer cleanups.	1999-02-22 05:26:58 +00:00
gram.y	Modify the outer join placeholder code with something closer to working	1999-02-23 07:42:41 +00:00
keywords.c	Change my-function-name-- to my_function_name, and optimizer renames.	1999-02-13 23:22:53 +00:00
parse.h	Optimizer fix for samekeys.	1999-02-09 06:30:45 +00:00
parse_agg.c	Change my-function-name-- to my_function_name, and optimizer renames.	1999-02-13 23:22:53 +00:00
parse_clause.c	Include some new code for outer joins. Disabled by default, but enable by	1999-02-23 07:46:42 +00:00
parse_coerce.c	From: Tatsuo Ishii <t-ishii@sra.co.jp>	1999-02-21 03:49:55 +00:00
parse_expr.c	Cleanup of source files where 'return' or 'var =' is alone on a line.	1999-02-03 21:18:02 +00:00
parse_func.c	Do a better job of selecting candidates among functions	1999-02-23 07:51:53 +00:00
parse_node.c	Change my-function-name-- to my_function_name, and optimizer renames.	1999-02-13 23:22:53 +00:00
parse_oper.c	Fix up error messages when looking up functions and operators to not	1998-12-13 23:54:40 +00:00
parse_relation.c	From: Tatsuo Ishii <t-ishii@sra.co.jp>	1999-02-21 03:49:55 +00:00
parse_target.c	Cleanup of source files where 'return' or 'var =' is alone on a line.	1999-02-03 21:18:02 +00:00
parse_type.c	New HeapTuple structure/interface.	1998-11-27 19:52:36 +00:00
parser.c	Change my-function-name-- to my_function_name, and optimizer renames.	1999-02-13 23:22:53 +00:00
scan.c	optimizer rename.	1999-02-14 05:14:15 +00:00
scan.l	Change my-function-name-- to my_function_name, and optimizer renames.	1999-02-13 23:22:53 +00:00
scansup.c	Change my-function-name-- to my_function_name, and optimizer renames.	1999-02-13 23:22:53 +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