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MDEV-15497 Wrong empty value in a GEOMETRY column on LOAD DATA

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- Adding a new virtual method Field::load_data_set_no_data().
- Overriding Field_timestamp::load_data_set_no_data() and moving
  the TIMESTAMP specific code there.
- Overriding Field_geom::load_data_set_no_data() and implementing
  GEOMETRY specific behavior, to prevent writing empty strings
  when the loaded file ends unexpectedly. This fixes the bug.
- Adding a new test gis-loaddaata.test.
- The test in loaddata.test for CHAR was added simply to record behavior.
  The CHAR data type did not change its behaviour (only GEOMRYRY did).
- Additionally, moving duplicate code into a new method
  Field::load_data_set_value() and reusing it in three places.
This commit is contained in:
Alexander Barkov
2018-03-07 19:52:00 +04:00
parent 2ef2863c30
commit 6ec3de5d2d
8 changed files with 173 additions and 34 deletions
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