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From:Matt W Date:November 1 2003 10:24pm
Subject:Re: Too Many Columns ERROR 175..
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Hi Mike,

From the last paragraph at

"The maximum size of a row in a MyISAM table is 65534 bytes. Each BLOB
and TEXT column accounts for only 5-9 bytes toward this size."

I assume from this that a VARCHAR(255) column (or even VARCHAR(10))
would count more towards that limit than a TINYTEXT one, even though
they can store the same amount.

Hope that helps.


----- Original Message -----
From: "Mike Kuhnkey"
Sent: Saturday, November 01, 2003 10:40 AM
Subject: Too Many Columns ERROR 175..

> What is the relationship between "column name length", "Number of
columns" and "max columns"?
> Upon creation of a table with +1700 columns (with approximately
25...30 characters per name) I get the "Too many columns" ERROR.
> If column names are limited to 2 characters the ERROR goes away.
> The table was created using utilities from MySQL CookBook via
>    mysqlimport --local MyData < Create_Table.sql
> Is it limited by physical memory...or a buffer default in the

Too Many Columns ERROR 175..Mike Kuhnkey1 Nov
  • Re: Too Many Columns ERROR 175..Martijn Tonies1 Nov
    • Re: Too Many Columns ERROR 175..Mike Kuhnkey7 Nov
  • Re: Too Many Columns ERROR 175..Matt W1 Nov