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postgresql/src/backend/parser
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Tom Lane d395aecffa Code review for escape-strings patch. Sync psql and plpgsql lexers 
with main, avoid using a SQL-defined SQLSTATE for what is most definitely
not a SQL-compatible error condition, fix documentation omissions,
adhere to message style guidelines, don't use two GUC_REPORT variables
when one is sufficient.  Nothing done about pg_dump issues.
 		2005-06-26 19:16:07 +00:00
..
.cvsignore Add .cvsignore file so cvs doesn't complain if you have lex/yacc 1999-03-21 02:43:58 +00:00
Makefile $Header: -> $PostgreSQL Changes ... 2003-11-29 19:52:15 +00:00
README cleanup 1998-08-23 14:43:46 +00:00
analyze.c Replace the parser's namespace tree (which formerly had the same 2005-06-05 00:38:11 +00:00
gram.y Remove overspecification of precision of CURRENT_TIMESTAMP, LOCALTIMESTAMP, 2005-06-24 14:28:06 +00:00
keywords.c Make REINDEX DATABASE do what one would expect, namely reindex all indexes 2005-06-22 21:14:31 +00:00
parse_agg.c Remove planner's private fields from Query struct, and put them into 2005-06-05 22:32:58 +00:00
parse_clause.c Replace the parser's namespace tree (which formerly had the same 2005-06-05 00:38:11 +00:00
parse_coerce.c Change expandRTE() and ResolveNew() back to taking just the single 2005-06-04 19:19:42 +00:00
parse_expr.c Add comment for multi-byte computation. 2005-06-04 20:56:13 +00:00
parse_func.c Add a hack requested by the JDBC driver writers: when a function's 2005-06-22 15:19:43 +00:00
parse_node.c Change the UNKNOWN type to have an internal representation matching 2005-05-30 01:20:50 +00:00
parse_oper.c Tag appropriate files for rc3 2004-12-31 22:04:05 +00:00
parse_relation.c Replace the parser's namespace tree (which formerly had the same 2005-06-05 00:38:11 +00:00
parse_target.c Replace the parser's namespace tree (which formerly had the same 2005-06-05 00:38:11 +00:00
parse_type.c Remove typeidIsValid() checks in can_coerce_type(). These checks 2005-05-29 18:24:14 +00:00
parser.c Tag appropriate files for rc3 2004-12-31 22:04:05 +00:00
scan.l Code review for escape-strings patch. Sync psql and plpgsql lexers 2005-06-26 19:16:07 +00:00
scansup.c Tag appropriate files for rc3 2004-12-31 22:04:05 +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