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postgres/src/backend/parser
History
Tom Lane c33d575899
More cleanup on roles patch. Allow admin option to be inherited through 		21 years ago
..
.cvsignore
…
Makefile $Header: -> $PostgreSQL Changes ... 22 years ago
README
…
analyze.c Replace the parser's namespace tree (which formerly had the same 21 years ago
gram.y More cleanup on roles patch. Allow admin option to be inherited through 21 years ago
keywords.c More cleanup on roles patch. Allow admin option to be inherited through 21 years ago
parse_agg.c Remove planner's private fields from Query struct, and put them into 21 years ago
parse_clause.c Replace the parser's namespace tree (which formerly had the same 21 years ago
parse_coerce.c Change expandRTE() and ResolveNew() back to taking just the single 21 years ago
parse_expr.c Add Oracle-compatible GREATEST and LEAST functions. Pavel Stehule 21 years ago
parse_func.c Add a hack requested by the JDBC driver writers: when a function's 21 years ago
parse_node.c Change the UNKNOWN type to have an internal representation matching 21 years ago
parse_oper.c Tag appropriate files for rc3 21 years ago
parse_relation.c Replace pg_shadow and pg_group by new role-capable catalogs pg_authid 21 years ago
parse_target.c Add Oracle-compatible GREATEST and LEAST functions. Pavel Stehule 21 years ago
parse_type.c Remove typeidIsValid() checks in can_coerce_type(). These checks 21 years ago
parser.c Tag appropriate files for rc3 21 years ago
scan.l Code review for escape-strings patch. Sync psql and plpgsql lexers 21 years ago
scansup.c Tag appropriate files for rc3 21 years ago

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