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emysql prepare statement breaks "in" operation #141

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jacktang opened this issue Jun 16, 2014 · 1 comment

jacktang commented Jun 16, 2014

Here are results of normal sql statement and prepare statement, and the result is quite different.

 emysql:execute(pool, "select * from test where id in (1,2)", []).

the result contains exactly two records which id are 1 and 2.

 emysql:execute(pool, "select * from test where id in (?)", ["1,2"])

which returns only one record with id 1

Tom9729 commented Jan 2, 2015

For that to work as expected it would be SQL injection, no?

You need to use multiple binds with dynamic SQL or use FIND_IN_SET (http://dev.mysql.com/doc/refman/5.0/en/string-functions.html#function_find-in-set).

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