A series of improvements have been made for reflection of CHECK constraints
on SQLite. The reflection logic now correctly handles table names
containing the strings "CHECK" or "CONSTRAINT", properly supports all four
SQLite identifier quoting styles (double quotes, single quotes, brackets,
and backticks) for constraint names, and accurately parses CHECK constraint
expressions containing parentheses within string literals using balanced
parenthesis matching with string context tracking. Big thanks to
GruzdevAV for new test cases and implementation ideas.
Fixes: #12924
Change-Id: I0390ac334c98e934c7e0353f47c9f43204791af5
this is many years overdue, let's do it while 2.1/2.0 are in
sync and we are far away from 1.4 now
Change-Id: Icf90f957e4d56382a4c91250f55bec4c7abc9d79
Mike Bayer