[massive store] Store entities in temporary table as well * on some entity type is encountered by a slave, create a dedicated table for insertion of entities of this type by this slave, similarly to what is done for relation - this should lower changes of conflicts in master/slaves mode ; * delay drop of constraints and indexes to `finish` method, where copy from temporary tables to regular table is done ; * insertion of metadata is done by scanning temporary tables, which may be way shorter than theier associated regular table ; * drop drop_metadata_constraints with its constraint_dropped friend attribute, there are no more necessary since this is done once in the `finish`. Related to #15538303

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/* -*- sql -*- 

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   mysql specific registered procedures, 

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*/

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/* XXX limit_size version dealing with format as postgres version does.

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   XXX mysql doesn't support overloading, each function should have a different name

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   NOTE: fulltext renamed since it cause a mysql name conflict

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 */

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CREATE FUNCTION text_limit_size(vfulltext TEXT, maxsize INT)

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RETURNS TEXT

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NO SQL

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BEGIN

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    IF LENGTH(vfulltext) < maxsize THEN

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       RETURN vfulltext;

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    ELSE

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       RETURN SUBSTRING(vfulltext from 1 for maxsize) || '...';

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    END IF;

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END ;;