BloGroonga

2022-10-31

Groonga 12.0.9 has been released

Groonga 12.0.9 has been released!

How to install: Install

Changes

Here are important changes in this release:

Improvements

  • AlmaLinux Added support for AlmaLinux 9.

    We had added this support at Groonga 12.0.8 but haven't announced it.

  • escalate Added a document for the escalate() function.

  • normalizers Added NormalizerHTML. (Experimental)

    NormalizerHTML is a normalizer for HTML.

    Currently NormalizerHTML supports removing tags like <span> or </span> and expanding character references like &amp; or &#38;.

    Here are sample queries for NormalizerHTML.

    normalize NormalizerHTML "<span> Groonga &amp; Mroonga &#38; Rroonga </span>"
[[0,1666923364.883798,0.0005481243133544922],{"normalized":" Groonga & Mroonga & Rroonga ","types":[],"checks":[]}]

    In this sample <span> and </span> are removed, and &amp; and &#38; are expanded to &.

    We can specify whether removing the tags with the remove_tag option. (The default value of the remove_tag option is true.)

    normalize 'NormalizerHTML("remove_tag", false)' "<span> Groonga &amp; Mroonga &#38; Rroonga </span>"
[[0,1666924069.278549,0.0001978874206542969],{"normalized":"<span> Groonga & Mroonga & Rroonga </span>","types":[],"checks":[]}]

    In this sample, <span> and </span> are not removed.

    We can specify whether expanding the character references with the expand_character_reference option. (The default value of the expand_character_reference option is true.)

    normalize 'NormalizerHTML("expand_character_reference", false)' "<span> Groonga &amp; Mroonga &#38; Rroonga </span>"
[[0,1666924357.099782,0.0002346038818359375],{"normalized":" Groonga &amp; Mroonga &#38; Rroonga ","types":[],"checks":[]}]

    In this sample, &amp; and &#38; are not expanded.

  • [httpd] Updated bundled nginx to 1.23.2.

    Contains security fixes of CVE-2022-41741 and CVE-2022-41742. Please refer to https://nginx.org/en/CHANGES about these security fixes.

  • Suppressed logging a lot of same messages when no memory is available.

    Groonga could log a lot of mmap failed!!!! when no memory is available. We improved to log the above message as less duplicates as possible.

Fixes

  • select Fixed a bug that Groonga could crash or return incorrect results when specifying n_workers.

    This bug had occurred when using n_workers with a value greater than 1 and drilldowns[{LABEL}].filter at the same time.

    The reason why this bug occurred was because Groonga referenced incorrect values (objects) when performing internal parallel processing. So if the condition above was satisfied, Groonga sometimes crashed or returned incorrect results depending on the timing of the parallel processing.

Known Issues

  • Currently, Groonga has a bug that there is possible that data is corrupt when we execute many additions, delete, and update data to vector column.

  • *< and *> only valid when we use query() the right side of filter condition. If we specify as below, *< and *> work as &&.

    • 'content @ "Groonga" *< content @ "Mroonga"'

  • Groonga may not return records that should match caused by GRN_II_CURSOR_SET_MIN_ENABLE.

Conclusion

Please refert to the following news for more details.

News Release 12.0.9

Let's search by Groonga!