Matches any view in the dataset, the query returns an error. The wildcard table functionality does not support views.Wildcard table queries are subject to the following limitations. The value matched by the wildcard character.įor information on wildcard table syntax, see Wildcard tables For example, the following FROM clause uses the wildcardĮxpression gsod* to match all tables in the noaa_gsod dataset that beginĮach row in the wildcard table contains a special column, _TABLE_SUFFIX, which contains For equivalentĪ wildcard table represents a union of all the tables that match the wildcardĮxpression. Wildcard tables are available only in GoogleSQL. Wildcard tables enable you to query multiple tables using concise SQL Query multiple tables using a wildcard table ![]() Save money with our transparent approach to pricing Rapid Assessment & Migration Program (RAMP) Which seems to pave the way for this problem.Migrate from PaaS: Cloud Foundry, OpenshiftĬOVID-19 Solutions for the Healthcare Industry I know that's horrid, but equally horrid is this silently behaving like that. In this case, they reconcile decimal and integer by promoting the integer to a decimal that can't contain it. If the data types of corresponding SELECT columns do not match, the types and lengths of the columns in the UNION result take into account the values retrieved by all of the SELECT statements. (For example, the first column selected by the first statement should have the same type as the first column selected by the other statements.) Selected columns listed in corresponding positions of each SELECT statement should have the same data type. The column names from the first SELECT statement are used as the column names for the results returned. The error also disappears if another leg is added to the union: select 20 union select 6 union select null union select 9.0 Īdding another null in the middle preserves the error: select 20 union select null union select null union select 9.0 īut adding a null at the beginning fixes it: select null union select 20 union select null union select null union select 9.0 Īs expected casting first value to decimal(3,1) works.įinally, explicitly casting to decimal(2,1) produces the same error but with a warning: select cast(20 as decimal(2,1)) īug MDEV-15999 filed by dbdemon reported this. If null is placed last resulting type is decimal(3,1) If null is placed first, resulting type is decimal(20,1). ![]() Select 20 union select 9.0 union select null Oddly enough the error disappears if null is moved first or last: select null union select 20 union select 9.0 > cur.execute("SELECT 20 union select null union select 2.2") The error is not isolated to the command line interface, it exists for python2-mysql-1.3.86_64 as well: > import MySQLdb | Field | Type | Null | Key | Default | Extra | select 20 union select null union select 9.0 ĮRROR: Seems like output is decimal(2,1) create table tmp as select * from (select 20 as x Ok, using int values does not seem to produce the error. Or make sure you have the double value first: SELECT 2.2 UNION SELECT null UNION SELECT 22 įurther observations after reading the comments in Carroll's answer select 20 union select null union select 2 ![]() If possible you can cast the integer value to a double: SELECT cast(20 as double) UNION SELECT null UNION SELECT 2.2 Looks like a bug to me and I can confirm this puzzling behaviour in: 10.2.14-MariaDB
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