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50 most recent check-ins
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2026-08-14
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| 18:38 | Avoid SQLite automatically repreparing the SQL statement used to read from the %_idx table each time a new value is bound to it. leaf check-in: 254f222b82 user: dan tags: trunk | |
| 17:21 | Fix minor documentation problems. check-in: 76acf88f84 user: dan tags: trunk | |
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2026-08-11
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| 15:17 | Update vibe_test.tcl to sample rows randomly for training. check-in: 8c9adf0974 user: dan tags: trunk | |
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2026-08-10
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| 21:03 | Add "Recommended training parameters" section to doc/vec1intro.md. check-in: 0cecf0bdec user: dan tags: trunk | |
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2026-08-08
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| 20:33 | Update docs to allow for more flexibility in the way the training profile callback is invoked in the future. check-in: 6b9abecb8d user: dan tags: trunk | |
| 17:41 | Fix the "model" column of the vec1cat table to better comport with vec1_train(). check-in: 747a32cc87 user: dan tags: trunk | |
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2026-08-07
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| 19:58 | Have the final message issued by vec1_train() via the progress callback be "training complete". Add a new "profile" callback which is passed a json object containing the profiling information at the end of training. check-in: cfd3baa1d6 user: dan tags: trunk | |
| 17:31 | Allow nbucket:1 models. This allows you to center vectors before using BQ on them. check-in: ac1a792d15 user: dan tags: trunk | |
| 16:49 | Fix another read of undefined values that could occur when using a binary quantizer on vectors that are not a multiple of 8 in size. check-in: 54752d402e user: dan tags: trunk | |
| 16:03 | Ensure that the dimensions-per-codebyte parameter is always set to 8 or 16 internally when using a binary quantizer. Report 2026-08-05T02:28:46Z. check-in: 5630951af3 user: dan tags: trunk | |
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2026-08-06
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| 17:26 | Fix a use-of-uninitialized-value sanitizer complaint in code to scan arrays of blocked codes. check-in: c73d0a4bf9 user: dan tags: trunk | |
| 16:45 | Fix the sizes of some buffers in cases where the vector size is not an integer multiple of the PQ codesize. Report 2026-08-05T05:46:16Z. check-in: d599822f43 user: dan tags: trunk | |
| 14:43 | Also mark SQL functions and aggregates created by vec1 as SQLITE_INNOCUOUS. check-in: bca0ccf1a8 user: dan tags: trunk | |
| 14:39 | Set the SQLITE_VTAB_INNOCUOUS flag for vec1 virtual tables. check-in: 4c04e0e4e6 user: dan tags: trunk | |
| 14:11 | Follow pgvector and refuse to accept any vector containing a Nan or Infinite value. This addresses report 2026-08-05T02:14:51Z. This can be revisited if anyone complains. check-in: ba5ea2e7bf user: dan tags: trunk | |
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2026-08-05
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| 20:12 | Have vec1_train() reject nthread:0. Report 2026-08-05T02:26:51Z . check-in: bd4962ba00 user: dan tags: trunk | |
| 19:30 | Avoid crashing in the case where an inserted vector is extremely far from all centroids. Report 2026-08-05T02:31:51Z . check-in: f795150547 user: dan tags: trunk | |
| 19:06 | Ensure unrecognized parameters within a query json object are reported as errors. Fix for report 2026-08-05T05:56:10Z. check-in: 9112b55dfa user: dan tags: trunk | |
| 18:37 | Ensure that for NN queries, the "distance" column always contains the distance between the result and query vectors, even if there is no index. Report 2026-08-05T01:32:56Z. check-in: c72e6ac941 user: dan tags: trunk | |
| 17:31 | Fix a problem confusing NULL and integer value 0x7FFFFFFF within meta-value lists that use the 4-byte integer format. Report 2026-08-05T02:20:23Z. check-in: a0fe090644 user: dan tags: trunk | |
| 16:57 | Ensure the internal vector-size field is set correctly following a savepoint rollback. And that a model that has been rolled back on disk does not remain cached in memory. Report 2026-08-05T01:26:25Z. check-in: 959beb6a25 user: dan tags: trunk | |
| 14:27 | Add support for "ALTER TABLE RENAME TO" to vec1 tables. Report 2026-08-05T01:12:57Z. check-in: e9a261a44d user: dan tags: trunk | |
| 11:52 | Do not allow text values to be written to vec1 table vector columns. Report 2026-08-04T23:38:27Z. check-in: 8b11c2a330 user: dan tags: trunk | |
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2026-08-04
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| 19:52 | Clarify that {opq:1} was deprecated in favor of {quantizer: "opq"}. check-in: 277b933172 user: dan tags: trunk | |
| 16:51 | Have the xBestIndex routine return SQLITE_CONSTRAINT if there is an unusable vector query term. Fix for bug report 5b6d1f4c9b. check-in: ff9fdbed5a user: dan tags: trunk | |
| 16:19 | Rework UPDATE handling to check there are no constraint violations before deleting the old row. Fix for report 173423ad5a. check-in: 9752bcf8ab user: dan tags: trunk | |
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2026-06-27
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| 14:15 | Minor website tweak. check-in: 3aeb7c7efa user: dan tags: trunk | |
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2026-06-25
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| 19:02 | Minor documentation updates. check-in: 8fc7b115a4 user: dan tags: trunk, version-0.7 | |
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2026-06-22
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| 19:24 | Update docs to account for training interface enhancements for BQ. check-in: 87bcfa9fc7 user: dan tags: trunk | |
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2026-06-17
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| 20:30 | Add code for binary quantizers and the Walsh-Hadamard Transform. check-in: 849374242c user: dan tags: trunk | |
| 20:05 | Set the codesize header field of a model that uses binary quantization so as to allow either 1 or 2 dimensions per bit. closed check-in: 296dc31f53 user: dan tags: binary-quant | |
| 18:22 | Increase version number to 0.7. Set the model header to require at least 0.7 if the model uses binary quantizer. check-in: 8a00291fe4 user: dan tags: binary-quant | |
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2026-06-13
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| 18:49 | Fix problems with deleting vectors from tables using a binary quanitizer. check-in: 6216484af8 user: dan tags: binary-quant | |
| 17:20 | Another fix for integrity-check with binary quantized vectors. check-in: 5ebab9a688 user: dan tags: binary-quant | |
| 15:02 | Fix problems with binary quantizers and integrity-check. check-in: ce4f186660 user: dan tags: binary-quant | |
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2026-06-12
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| 16:20 | Fix integrity-check with on tables that use the binary-quantizer. check-in: bf000848d5 user: dan tags: binary-quant | |
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2026-06-11
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| 18:28 | Allow bq quantizer to use 1 bit for 2 dimensions. check-in: 281ce225ac user: dan tags: binary-quant | |
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2026-06-06
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| 19:13 | Add the "quantizer" option to the training configuration object. May be set to string value "none", "pq", "opq" or "bq". check-in: 0d66cd7187 user: dan tags: binary-quant | |
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2026-06-04
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| 17:49 | Consolidate the functions used to scan PQ and BQ blocks. check-in: 1f88f9a98c user: dan tags: binary-quant | |
| 06:10 | Use the same blocked layout for BQ as PQ. check-in: 60c154f4bf user: dan tags: binary-quant | |
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2026-05-30
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| 14:40 | Add routines to use hamming distance instead of ADC with binary quantization. Not clear the speedup will be worth the cost in recall at this point... check-in: 65c6b19d63 user: dan tags: binary-quant | |
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2026-05-29
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| 19:31 | Add compile time option for 4-bit binary-quantizer LUT. Not as fast as 8-bit with current (unblocked) storage. check-in: 9db73bdef4 user: dan tags: binary-quant | |
| 13:17 | Add test for binary quantization. check-in: d9e90504c1 user: dan tags: binary-quant | |
| 13:16 | Add an option to use Walsh-Hadamard transform in vector pipeline. This improves the accuracy of binary quantization. check-in: b56656c37d user: dan tags: binary-quant | |
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2026-05-28
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| 17:34 | Add experimental binary quantizer as an alternative to PQ. Not as effective as PQ, but if used with residual vectors does not require training. check-in: d49913f9fe user: dan tags: binary-quant | |
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2026-05-26
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| 16:51 | Increase version number to 0.6. check-in: 762865e44d user: dan tags: trunk, version-0.6 | |
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2026-05-25
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| 15:56 | Fix some source code comments. Add tests. check-in: 5d3268addf user: dan tags: trunk | |
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2026-05-20
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| 17:51 | Improve test coverage slightly. check-in: 0491d61e40 user: dan tags: trunk | |
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2026-05-15
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| 11:40 | Add tests and fixes to restore test coverage. check-in: 61d095bece user: dan tags: trunk | |
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2026-05-14
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| 16:36 | Handle errors that may cause transaction rollback within calls to vec1UpdateMethod(). check-in: 4d957c1495 user: dan tags: trunk | |