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authorGravatar bencollins 2003-07-13 01:01:13 +0000
committerGravatar bencollins 2003-07-13 01:01:13 +0000
commita81dbc71a1d4c2c58e6c074244f407feda31add1 (patch)
treedea879dc5bd435394413b76ebd15aea96f4bbb17 /doc/sendiso.1.in
parentUpdate Debian changelog. (diff)
Update Debian maintainer
git-svn-id: svn://svn.linux1394.org/libraw1394/trunk@112 53a565d1-3bb7-0310-b661-cf11e63c67ab
Diffstat (limited to 'doc/sendiso.1.in')
0 files changed, 0 insertions, 0 deletions
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2026-01-18 07:54:29 +0000
12/+28 As of right now NOT queries do not work correctly for cards with more than one tag. 2021-07-26natargs: add missing importGravatar Peter McGoron 1-0/+2 2021-07-26queryparse: remove literal setGravatar Peter McGoron 2-17/+14 2021-07-26queryparse: add function to build SQL queriesGravatar Peter McGoron 2-1/+73 SQLite allows for UNIONs and INTERSECTIONs between SELECT statements, but it does not support grouping them. By recursively applying DeMorgan's laws, the parser can reduce the parse tree to only * Literals * NOT literals (i.e. "all items not belonging to this tag") * ANDs * ORs What SQLite /can/ do is have SELECT statements come from other SELECT statements. A query like (X & Y & Z) | (A & B & C) in pseudo-SQLite becomes SELECT * FROM ( SELECT * FROM tbl WHERE name IN X INTERSECTION SELECT * FROM tbl WHERE name IN Y INTERSECTION SELECT * FROM tbl WHERE name IN Z ) UNION SELECT * FROM ( SELECT * FROM tbl WHERE name IN A INTERSECTION SELECT * FROM tbl WHERE name IN B INTERSECTION SELECT * FROM tbl WHERE name IN C ) One future optimization would be to group all literals at a certain level with each other, so that there are less direct queries to the entire tag table. 2021-07-26queryparse: use demorgan's laws to simplify parsed expressionGravatar Peter McGoron 2-1/+17 2021-07-26update README.mdGravatar Peter McGoron 1-0/+10 2021-07-26queryparse: collect literals into set and return itGravatar Peter McGoron 2-16/+22 2021-07-26gitea wants .md suffixes for web renderingGravatar Peter McGoron 2-0/+0 2021-07-26example/query.md: change to what the code actually implementsGravatar Peter McGoron 1-3/+3