/usr/share/mediawiki-extensions/math/db/math.sql is in mediawiki-extensions-math 2:1.0+git20120528-8.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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-- Used by the math module to keep track
-- of previously-rendered items.
--
CREATE TABLE /*_*/math (
-- Binary MD5 hash of the latex fragment, used as an identifier key.
math_inputhash varbinary(16) NOT NULL,
-- Not sure what this is, exactly...
math_outputhash varbinary(16) NOT NULL,
-- texvc reports how well it thinks the HTML conversion worked;
-- if it's a low level the PNG rendering may be preferred.
math_html_conservativeness tinyint NOT NULL,
-- HTML output from texvc, if any
math_html text,
-- MathML output from texvc, if any
math_mathml text
) /*$wgDBTableOptions*/;
CREATE UNIQUE INDEX /*i*/math_inputhash ON /*_*/math (math_inputhash);
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