With Joomla in debug mode, when I look at the heading on the bottom of the page ‘Database Queries’, I see some errors. Please look at a few examples of the errors circled in red in the attached image. I think it refers to the ‘simple select’ field.
The error description in black says:
“This table has probably a missing index on WHERE equalities and/or JOIN ON column/s or is written in a way that no index can be used, causing a time consuming full table scan”
What can be wrong to cause the errors?
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With Joomla in debug mode, when I look at the heading on the bottom of the page ‘Database Queries’, I see some errors. Please look at a few examples of the errors circled in red in the attached image. I think it refers to the ‘simple select’ field.
The error description in black says:
“This table has probably a missing index on WHERE equalities and/or JOIN ON column/s or is written in a way that no index can be used, causing a time consuming full table scan”
What can be wrong to cause the errors?