postgres

History

Bruce Momjian 8b4ff8b6a1 Wording cleanup for error messages. Also change can't -> cannot.

Standard English uses "may", "can", and "might" in different ways:

        may - permission, "You may borrow my rake."

        can - ability, "I can lift that log."

        might - possibility, "It might rain today."

Unfortunately, in conversational English, their use is often mixed, as
in, "You may use this variable to do X", when in fact, "can" is a better
choice.  Similarly, "It may crash" is better stated, "It might crash".

2007-02-01 19:10:30 +00:00

.cvsignore

…

analyze.c

Wording cleanup for error messages. Also change can't -> cannot.

2007-02-01 19:10:30 +00:00

gram.y

Wording cleanup for error messages. Also change can't -> cannot.

2007-02-01 19:10:30 +00:00

keywords.c

Various fixes in the logic of XML functions:

2007-01-25 11:53:52 +00:00

Makefile

Re-introduce the yylex filter function formerly used to support UNION

2006-05-27 17:38:46 +00:00

parse_agg.c

Wording cleanup for error messages. Also change can't -> cannot.

2007-02-01 19:10:30 +00:00

parse_clause.c

Wording cleanup for error messages. Also change can't -> cannot.

2007-02-01 19:10:30 +00:00

parse_coerce.c

Update CVS HEAD for 2007 copyright. Back branches are typically not

2007-01-05 22:20:05 +00:00

parse_expr.c

Various fixes in the logic of XML functions:

2007-01-25 11:53:52 +00:00

parse_func.c

Wording cleanup for error messages. Also change can't -> cannot.

2007-02-01 19:10:30 +00:00

parse_node.c

Update CVS HEAD for 2007 copyright. Back branches are typically not

2007-01-05 22:20:05 +00:00

parse_oper.c

Wording cleanup for error messages. Also change can't -> cannot.

2007-02-01 19:10:30 +00:00

parse_relation.c

Update CVS HEAD for 2007 copyright. Back branches are typically not

2007-01-05 22:20:05 +00:00

parse_target.c

Add support for xmlval IS DOCUMENT expression.

2007-01-14 13:11:54 +00:00

parse_type.c

2007-01-05 22:20:05 +00:00

parser.c

Support ORDER BY ... NULLS FIRST/LAST, and add ASC/DESC/NULLS FIRST/NULLS LAST

2007-01-09 02:14:16 +00:00

README

…

scan.l

2007-01-05 22:20:05 +00:00

scansup.c

2007-01-05 22:20:05 +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