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Faster Postgres numeric comparasion

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Komяpa 2011-01-11 14:11:50 +02:00
parent 95d1489087
commit eee5b693b0
1 changed files with 4 additions and 4 deletions
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8
src/mapcss/Condition.py
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@ -130,13 +130,13 @@ class Condition:
return params[0], '"%s" IS NULL'%(params[0])
if t == '<':
return params[0], """(CASE WHEN "%s" ~ E'^[[:digit:]]+([.][[:digit:]]+)?$' THEN CAST ("%s" AS FLOAT) ELSE 0 END) &lt; %s"""%(params[0],params[0],params[1])
return params[0], """(CASE WHEN "%s" ~ E'^[-]?[[:digit:]]+([.][[:digit:]]+)?$' THEN CAST ("%s" AS FLOAT) &lt; %s ELSE false END) """%(params[0],params[0],params[1])
if t == '<=':
return params[0], """(CASE WHEN "%s" ~ E'^[[:digit:]]+([.][[:digit:]]+)?$' THEN CAST ("%s" AS FLOAT) ELSE 0 END) &lt;= %s"""%(params[0],params[0],params[1])
return params[0], """(CASE WHEN "%s" ~ E'^[-]?[[:digit:]]+([.][[:digit:]]+)?$' THEN CAST ("%s" AS FLOAT) &lt;= %s ELSE false END)"""%(params[0],params[0],params[1])
if t == '>':
return params[0], """(CASE WHEN "%s" ~ E'^[[:digit:]]+([.][[:digit:]]+)?$' THEN CAST ("%s" AS FLOAT) ELSE 0 END) > %s"""%(params[0],params[0],params[1])
return params[0], """(CASE WHEN "%s" ~ E'^[-]?[[:digit:]]+([.][[:digit:]]+)?$' THEN CAST ("%s" AS FLOAT) > %s ELSE false END) """%(params[0],params[0],params[1])
if t == '>=':
return params[0], """(CASE WHEN "%s" ~ E'^[[:digit:]]+([.][[:digit:]]+)?$' THEN CAST ("%s" AS FLOAT) ELSE 0 END) >= %s"""%(params[0],params[0],params[1])
return params[0], """(CASE WHEN "%s" ~ E'^[-]?[[:digit:]]+([.][[:digit:]]+)?$' THEN CAST ("%s" AS FLOAT) >= %s ELSE false END) """%(params[0],params[0],params[1])
except KeyError:
pass
def get_mapnik_filter(self):