5 Commits (6f1f34c92b11593ec62ff3e12781eb96dc911821)

Author	SHA1	Message	Date
Tom Lane	68ab8e8ba4	SQL commands in pgbench scripts are now ended by semicolons, not newlines. ... To allow multiline SQL commands in scripts, adopt the same rules psql uses to decide what is the end of a SQL command, to wit, an unquoted semicolon not encased in parentheses. Do this by importing the same flex lexer that psql uses, since coping with stuff like dollar-quoted literals is hard to get right without going the full nine yards. This makes use of the infrastructure added in commit 0ea9efbe9e to support independently-written flex lexers scanning the same PsqlScanState input-buffer data structure. Since that infrastructure isn't very friendly to ad-hoc parsing code such as strtok(), improve exprscan.l so that it can parse either whitespace-separated words or expression tokens, on demand, and rewrite pgbench.c's backslash-command parsing code to always use the lexer to fetch tokens. It's still the case that pgbench backslash commands extend to the end of the line, no more and no less. That could be changed in a fairly localized way now, and there was some interest in doing so, but it seems like material for a separate patch. In passing, make some marginal cleanups in syntax error reporting, const-ify a few data structures that could use it, and run some of this code through pgindent. I can't tell whether the MSVC build scripts need to be taught explicitly about the changes here or not, but the buildfarm will soon tell us. Kyotaro Horiguchi and Tom Lane	9 years ago
Tom Lane	429ee5a822	Make pgbench's expression lexer reentrant. ... This is a necessary preliminary step for making it play with psqlscan.l given the way I set up the lexer input-buffer sharing mechanism in commit 0ea9efbe9e. I've not tried to make it *actually* reentrant; there's still some static variables laying about. But flex thinks it's reentrant, and that's what counts. In support of that, fix exprparse.y to pass through the yyscan_t from the caller. Also do some minor code beautification, like not casting away const.	9 years ago
Robert Haas	7e137f846d	Extend pgbench's expression syntax to support a few built-in functions. ... Fabien Coelho, reviewed mostly by Michael Paquier and me, but also by Heikki Linnakangas, BeomYong Lee, Kyotaro Horiguchi, Oleksander Shulgin, and Álvaro Herrera.	9 years ago
Bruce Momjian	ee94300446	Update copyright for 2016 ... Backpatch certain files through 9.1	10 years ago
Peter Eisentraut	81134af3ec	Move pgbench from contrib/ to src/bin/ ... Reviewed-by: Michael Paquier <michael.paquier@gmail.com>	10 years ago
Tom Lane	e9dd03c03a	Minor code cleanups in pgbench expression support. ... Get rid of unnecessary expr_yylex declaration (we haven't supported flex 2.5.4 in a long time, and even if we still did, the declaration in pgbench.h makes this one unnecessary and inappropriate). Fix copyright dates, improve some layout choices, etc.	10 years ago
Robert Haas	878fdcb843	pgbench: Add a real expression syntax to \set ... Previously, you could do \set variable operand1 operator operand2, but nothing more complicated. Now, you can \set variable expression, which makes it much simpler to do multi-step calculations here. This also adds support for the modulo operator (%), with the same semantics as in C. Robert Haas and Fabien Coelho, reviewed by Álvaro Herrera and Stephen Frost	10 years ago