6648ff5968
add string == row group filter
...
For the statscan census set filtering on `== 'Dawson Creek'`, the query
goes from 980ms to 660ms.
This is expected, since the data isn't sorted by that column.
I'll try adding some scaffolding to do filtering at the row level, too.
We could also try unpacking the dictionary and testing the individual
values, although we may want some heuristics to decide whether it's
worth doing -- eg if < 10% of the rows have a unique value.
Ideally, this should be like a ~1ms query.
2018-03-15 20:40:21 -04:00
dc431aee20
Dispatch row group filtering based on parquet type
2018-03-15 20:25:02 -04:00
92ba5f94e0
reuse FileMetaData
...
For the statscan dataset, parsing the file metadata takes ~30-40ms,
so stash it away for future re-use.
2018-03-15 19:57:38 -04:00
769060dbcb
Add stub row group filters for text/int/dbl
...
Checkpointing to investigate why min/max stats for text aren't
present
2018-03-12 23:07:41 -04:00
110e3e3668
row group skipping for is [not] null queries
2018-03-12 21:09:00 -04:00
95748a5192
Remove bool from Constraint
2018-03-12 20:50:30 -04:00
acc15256ec
Add rowgroup filtering for rowid
2018-03-12 20:42:50 -04:00
1f938a005d
More tests cases to deal with affinity
...
I'm not sure how these manifest - whether SQLite retypes them based on
column affinity before we see them, or whether they're provided as is.
2018-03-11 19:18:44 -04:00
095b576cc2
Scaffolding for row group filters, tests
...
rowid is special since its column index is -1, so add
explicit tests around it
2018-03-11 15:44:51 -04:00
5559a7b563
Fix when last rowgroup is not same size as first
...
...change test data to use 99 rows, so that when we have
rowgroup size 10 we exercise this code.
2018-03-11 15:15:27 -04:00
830053c1fc
Scaffolding for in-extension filtering
...
Supports IS NULL and IS NOT NULL checks
2018-03-11 13:58:10 -04:00
d28ae86d15
Test unusable constraints
2018-03-10 13:38:34 -05:00
96fcafcd2f
Add test cases
2018-03-10 13:25:13 -05:00
b7c134efc0
test-queries: can debug a testcase
...
`tests/test-queries regex` filters the test cases.
If the resulting set has only one test case, run it under gdb.
2018-03-10 11:54:36 -05:00
210f322a1c
Code to pretty print constraints
2018-03-10 10:59:53 -05:00
2bc054a2cf
Add crappy Makefile
2018-03-10 10:46:10 -05:00
824a416f51
better debug logs for xBestIndex
2018-03-08 13:21:33 -05:00
2d616c54fb
More tests
2018-03-07 20:30:25 -05:00
35fcde926c
Rewrite SQL oracle harness
2018-03-07 20:20:34 -05:00
caefc23b1e
Add a pg oracle
...
- define `datetime`, `printf` fns in pg so it produces similar
output as sqlite
- tidy up input data to be less wide
To do: some fns to make it easy to generate a new test case. Probably
want to mount all the 3 parquets simultaneously and refer to the
sqlite table by the same name as the pg table.
2018-03-07 19:40:38 -05:00
0d4806ca6f
Rejig parquet generation
...
- "fixed_size_binary" -> "binary_10"
- make null parquet use rowgroups of sie 10: first rowgroup
has no nulls, 2nd has all null, 3rd-10th have alternating
nulls
This is prep for making a Postgres layer to use as an oracle
for generating test cases so that we have good coverage before
implementing advanced `xBestIndex` and `xFilter` modes.
2018-03-06 21:02:26 -05:00
56245c1d3d
test case for nulls
2018-03-04 22:48:39 -05:00
67005623df
`ensureColumn` catches up when rows are skipped
2018-03-04 22:29:35 -05:00
bb3a9440f7
Add query test framework, fix xFilter
2018-03-04 21:05:26 -05:00
4c54ab89ae
Don't segfault on full table scan
2018-03-04 17:49:19 -05:00
7edb5e472f
Support BLOBs
2018-03-04 17:20:59 -05:00
f3e78408bf
Update demo to use checked in parquet
2018-03-04 13:06:50 -05:00
aea9469bff
tweak wording
2018-03-04 13:04:58 -05:00
a4f368af9c
Add tests for unsupported types
2018-03-04 13:02:42 -05:00
681c8a443f
Add tool to generate sample parquets
2018-03-04 12:15:50 -05:00
67b0d96967
float support
2018-03-03 20:57:09 -05:00
18f07f4c43
More defensive, add caveats
2018-03-03 20:30:46 -05:00
eb0b48f867
Boolean, INT96, INT64
2018-03-03 20:00:50 -05:00
1de843fca8
Very rough first cut
...
supports int32, double, strings.
2018-03-03 15:44:01 -05:00
f8599f8d3e
Rename some references to CSVs
...
...some nonsensical things, like "first row of Parquet",
but we'll tidy them up later.
2018-03-02 19:18:36 -05:00
552da5a647
Initial checkin of CSV table
...
parquet.cc is a fork of the sample CSV virtual table at
https://www.sqlite.org/src/artifact?ci=trunk&filename=ext/misc/csv.c
So far the only changes are those needed to make it compile cleanly in
C++11 mode.
2018-03-02 18:59:34 -05:00
811badc9f9
Add script to fetch+build sqlite
2018-03-02 18:46:40 -05:00
8b9b3bcc9d
Initial commit
2018-03-02 18:37:08 -05:00
Colin Dellow