TYPO3 Core

When the indexed_search indexer is called on a page of a site using PostgreSQL a DBAL-DriverException occurs:

Core: Exception handler (WEB): Uncaught TYPO3 Exception: An exception occurred while executing '
INSERT INTO "index_rel" ("phash", "wid", "count", "first", "freq", "flags") VALUES 
(?, ?, ?, ?, ?, ?), (?, ?, ?, ?, ?, ?), (?, ?, ?, ?, ?, ?), (?, ?, ?, ?, ?, ?), (?, ?, ?, ?, ?, ?), (?, ?, ?, ?, ?, ?), (?, ?, ?, ?, ?, ?), (?, ?, ?, ?, ?, ?), (?, ?, ?, ?, ?, ?), (?, ?, ?, ?, ?, ?), (?, ?, ?, ?, ?, ?), (?, ?, ?, ?, ?, ?), (?, ?, ?, ?, ?, ?), (?, ?, ?, ?, ?, ?), (?, ?, ?, ?, ?, ?), (?, ?, ?, ?, ?, ?)'
with params
[79503457, 232976733, 2, 0, 22857.142857142855, 128, 79503457, 33134531, 2, 0, 22857.142857142855, 128, 79503457, 142534212, 3, 2, 32000, 0, 79503457, 206349347, 2, 3, 22857.142857142855, 0, 79503457, 257362240, 2, 4, 22857.142857142855, 0, 79503457, 140886208, 2, 5, 22857.142857142855, 0, 79503457, 140542595, 1, 6, 11428.571428571428, 0, 79503457, 49039618, 1, 7, 11428.571428571428, 0, 79503457, 221124326, 3, 8, 32000, 0, 79503457, 242808131, 3, 9, 32000, 0, 79503457, 46935156, 2, 10, 22857.142857142855, 0, 79503457, 267908178, 1, 11, 11428.571428571428, 0, 79503457, 105049209, 1, 12, 11428.571428571428, 0, 79503457, 95445454, 1, 13, 11428.571428571428, 0, 79503457, 53275072, 1, 14, 11428.571428571428, 0, 79503457, 243331443, 1, 18, 11428.571428571428, 0]:
SQLSTATE[22P02]: Invalid text representation: 7 ERROR: invalid input syntax for integer: "22857.142857143" | Doctrine\DBAL\Exception\DriverException thrown in file /vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/AbstractPostgreSQLDriver.php in line 79.

The exception happens because table index_rel defines freq as smallint(5) but tries to insert floats in it:

CREATE TABLE index_rel (
  freq smallint(5) unsigned DEFAULT '0' NOT NULL,
);