postgres

History

Thomas G. Lockhart 8536c96261 Do type conversion to match columns in UNION clauses.

Currently force the type to match the _first_ select in the union.
Move oper_select_candidate() from parse_func.c to parse_oper.c.
Throw error inside of oper_inexact() if no match for binary operators.
Check more carefully that types can be coerced
 even if there is only one candidate operator in oper_inexact().
Fix up error messages for more uniform look.
Remove unused code.
Fix up comments.

1998-05-29 14:00:24 +00:00

analyze.c

Fix up a couple of comments broken by the automatic indenting process.

1998-05-29 13:39:30 +00:00

gram.c

Someone remove a #define too much from pg_proc.h which breaks

1998-05-12 17:46:50 +00:00

gram.y

Implement TIMEZONE_HOUR, TIMEZONE_MINUTE per SQL92 specs.

1998-05-09 23:22:15 +00:00

keywords.c

Add TIMEZONE_HOUR, TIMEZONE_MINUTE keywords per SQL92 specs.

1998-05-09 23:28:49 +00:00

Makefile

Remove extraneous -DPARSEDEBUG from CFLAGS options.

1998-05-13 04:54:16 +00:00

parse_agg.c

I started adding the Having Clause and it works quite fine for

1998-03-30 16:36:43 +00:00

parse_clause.c

Do type conversion to match columns in UNION clauses.

1998-05-29 14:00:24 +00:00

parse_coerce.c

Do type conversion to match columns in UNION clauses.

1998-05-29 14:00:24 +00:00

parse_expr.c

Do type conversion to match columns in UNION clauses.

1998-05-29 14:00:24 +00:00

parse_func.c

Do type conversion to match columns in UNION clauses.

1998-05-29 14:00:24 +00:00

parse_node.c

Do type conversion to match columns in UNION clauses.

1998-05-29 14:00:24 +00:00

parse_oper.c

Do type conversion to match columns in UNION clauses.

1998-05-29 14:00:24 +00:00

parse_relation.c

pgindent run before 6.3 release, with Thomas' requested changes.

1998-02-26 04:46:47 +00:00

parse_target.c

Do type conversion to match columns in UNION clauses.

1998-05-29 14:00:24 +00:00

parse_type.c

Do type conversion to match columns in UNION clauses.

1998-05-29 14:00:24 +00:00

parse.h

Someone remove a #define too much from pg_proc.h which breaks

1998-05-12 17:46:50 +00:00

parser.c

pgindent run before 6.3 release, with Thomas' requested changes.

1998-02-26 04:46:47 +00:00

README

Add Var.varlevelup to code. More parser cleanup.

1998-01-20 22:12:17 +00:00

scan.c

llow more variations on valid floating point numbers (e.g. ".1", "1e6").

1998-05-09 23:27:39 +00:00

scan.l

Allow more variations on valid floating point numbers (e.g. ".1", "1e6").

1998-05-09 23:15:20 +00:00

scansup.c

pgindent run before 6.3 release, with Thomas' requested changes.

1998-02-26 04:46:47 +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