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bd97e4e7be
postgresql/src/backend/parser
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Thomas G. Lockhart bd97e4e7be Implement explicit date/time precision per SQL99 spec. 
Use CAST() mechanism to define CURRENT_TIME and CURRENT_TIMESTAMP.
2001-10-05 06:37:42 +00:00
..
.cvsignore Add .cvsignore file so cvs doesn't complain if you have lex/yacc 1999-03-21 02:43:58 +00:00
analyze.c DROP AGGREGATE and COMMENT ON AGGREGATE now accept the expected syntax 2001-10-03 20:54:22 +00:00
gram.y Implement explicit date/time precision per SQL99 spec. 2001-10-05 06:37:42 +00:00
keywords.c Add CREATE OR REPLACE FUNCTION syntax to allow replacing a function 2001-10-02 21:39:36 +00:00
Makefile No longer a need for -Wno-error 2001-08-09 18:13:23 +00:00
parse_agg.c Use format_type sibling in backend error messages, so the user sees 2001-08-09 18:28:18 +00:00
parse_clause.c Use format_type sibling in backend error messages, so the user sees 2001-08-09 18:28:18 +00:00
parse_coerce.c Make the world safe for atttypmod=0 ... this didn't use to mean anything, 2001-10-04 17:52:24 +00:00
parse_expr.c Measure the current transaction time to milliseconds. 2001-09-28 08:09:14 +00:00
parse_func.c Consider interpreting a function call as a trivial (binary-compatible) 2001-10-04 22:06:46 +00:00
parse_node.c Use format_type sibling in backend error messages, so the user sees 2001-08-09 18:28:18 +00:00
parse_oper.c Use format_type sibling in backend error messages, so the user sees 2001-08-09 18:28:18 +00:00
parse_relation.c Make OIDs optional, per discussions in pghackers. WITH OIDS is still the 2001-08-10 18:57:42 +00:00
parse_target.c Measure the current transaction time to milliseconds. 2001-09-28 08:09:14 +00:00
parse_type.c pgindent run. Make it all clean. 2001-03-22 04:01:46 +00:00
parser.c pgindent run. Make it all clean. 2001-03-22 04:01:46 +00:00
README cleanup 1998-08-23 14:43:46 +00:00
scan.l Change addlit() to not assume its input is null-terminated, so that we 2001-09-07 23:17:14 +00:00
scansup.c Change Copyright from PostgreSQL, Inc to PostgreSQL Global Development Group. 2001-01-24 19:43:33 +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_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