pgsql: doc: add float as an alias for double precision.

doc: add float as an alias for double precision.

Although the "Floating-Point Types" section says that "float" data
type is taken to mean "double precision", this information was not
reflected in the data type table that lists all data type aliases.

Reported-by: alexander(dot)kjall(at)hafslund(dot)no
Author: Euler Taveira <euler(at)eulerto(dot)com>
Reviewed-by: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Discussion: https://postgr.es/m/175456294638.800.12038559679827947313@wrigleys.postgresql.org
Backpatch-through: 13

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/04b7ff3cd33c0b9574eed3b662c16d810a903bd4

Modified Files
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doc/src/sgml/datatype.sgml | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)