Float64 converts string to float64.

FormatPercentile formats a percentile into the form pNNN where NNN is the percentile up to 1 decimal point.

MySQLVersion returns the MySQL version as integers: major, minor, patch.

MySQLVersionGTE returns true if the current MySQL version is >= version.

ParsePercentileStr coverts a string of percentile in different form to the percentile as decimal.

PercentileMetrics returns the list of percentile strings like "P95" in standard form (lowercase "p95") and decimal (0.95).

ReadOnly returns true if the err is a MySQL read-only error caused by writing to a read-only instance.

RowToMap converts a single row from query (or the last row) to a map of strings keyed on column name.