DBD::MySQL: LongReadLen and LongTruncOk

Question

Have the attributes LongReadLen and LongTruncOk when using DBD::mysql as driver for the Perl5 Database Interface (DBI) any meaning? I didn't found these attributes in the DBD::mysql documentation but I found some example on the internet which uses these attributes with DBD::mysql.

I have used that attribs in large blob reading from mysql db and it worked fine for me — Miguel Prz, Jan 23 '13 at 15:30

score 2 · Answer 1 · answered Jan 23 '13 at 15:28

2

That is a DBI attribute which applies to all handles. Its documented in the DBI library. AFAIK it applies to DBD::mysql and every DBI driver.

answered Jan 23 '13 at 15:28

Schwern

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score 1 · Accepted Answer · answered Jan 24 '13 at 10:18

If you search dbdimp.c I find:

 *
 *  Name:    dbd_st_blob_read
 *
 *  Purpose: Used for blob reads if the statement handles "LongTruncOk"
 *           attribute (currently not supported by DBD::mysql)

I could not find any reference to longreadlen. Note, I don't use DBD::mysql myself and this was just a quick search in the code.

DBD::MySQL: LongReadLen and LongTruncOk

2 Answers2