A name can contain up to 128 characters. I am not sure how you created that table b/c at times Postgres will automatically quote things even without you knowing it. ; The COLUMN keyword in the statement is optional therefore you can omit it like this: How can we use MySQL function STR_TO_DATE(Column, ‘%input_format’)? Problem/Motivation Some migrate tables use reserved keywords as column name like OFFSET currently causing exceptions on PostgreSQL because such names need quoting to work. As this is somehow not a problem for MySQL we decided to add support for PostgreSQL also by adding quotes where needed. Apparently 'cast' is a reserved word in Postgres and you cannot have a field by that name, you can however declare it as long as it is double quoted. ... AND translations. ; Third, specify the new name for the column after the TO keyword. need help specifying potentially reserved words as strings in postgres query. ALTER TABLE test RENAME COLUMN sum TO "group"; Note that when using quoted idenfifiers, you need to always quote it. While creating a MySQL table use the reserved keyword ‘Key’ Can we use “rank” as column name with MySQL8? A name cannot be a PostgreSQL reserved word, such as WHERE or VIEW. ; Second, provide name of the column that you want to rename after the RENAME COLUMN keywords. Proposed resolution Add new reserved words for PostgreSQL … ArcGIS does not consume quotes, so it is looking for that column name to be as not "as" and not find it. I can NOT get this to work as the parser seems to pick up "percent" as a function and confuse the SQL when it … To use a reserved word or a name with "illegal" characters (such as a space) for an identifier, you need to quote the identifier. Also, we can use reserved keywords as a column alias, but not for tables. A name cannot be the same as another PostgreSQL object that has the same type. And it becomes case sensitive. The first character in a name can be a letter, @, _, or #. Postgres differentiates from the reserved word by putting it in quotes. – 32bitfloat Sep 12 '12 at 15:25 It acts as if your GUI tool passed an uppercase column name, including double quotes, to PostgreSQL. Is "type" a reserved word in mysql, Avoid using ISO reserved keywords for object names and identifiers. Can we use MySQL keyword as alias name for a column? By using column aliases, the query output can become more meaningful. The keyword AS can be used between the column or table name and the alias name, but this is optional. The ODBC reserved keyword list, shown in the following table, is the same Transact-SQL reserved keywords can be used as identifiers or names of databases or database objects, such as tables, columns, views, and so on. Use double quotes and be sure to use the case that the column name was defined with, default is UPPER case. E.g. "group" is a different column name than "GROUP". When copying the military features schema to a postgres database the entity column is changed to database.table.entity because the entity field appears to be a reserved keyword. "COLUMN" = 'description' Eg. bad: cast varchar(256), good: "cast" varchar(256) However, the problem is that all of the built in Postgres handling for queries do not wrap field names in double quotes. This issue is part of [#2157455]. postgresql. In this statement: First, specify the name of the table that contains the column which you want to rename after the ALTER TABLE clause. A table alias is helpful for user convenience and ease of use for complex queries. Is name a reserved word in MySQL? How can we use the MySQL reserved words as an identifier? What I wanted to know is, why the word ID has to be quoted, or which functionality is connected to ID, that I have to quote it for using it as a column name. One of the legacy columns is called "percent" (as reserved word). 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