Evaluate flatdb mysql backend on svko-qmd-ext 8086
Documents with 0 elements exist
- invalid state, is actually not possible anymore with current restClient
- It is recommended to delete these datasets
Join leads to several not schema-valid documents
- It is recommended to ensure schema validation
Fix of sequence_in_parent
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Join throws exception if sequence_in_parent is null
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Join returns invalid xml if sequence_in_parent is 0
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see https://git.gesis.org/stardat/stardat-ddiflatdb/issues/260
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SQL script on svko-qmd-ext:3306/stardat-ddiflatdb executed
set SQL_SAFE_UPDATES = 0; update `stardat-ddiflatdb`.element set `sequence_in_parent` = '0'; update `stardat-ddiflatdb`.element_aud set `sequence_in_parent` = '0';
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Do not
merge branch