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Boolean values can be indicated as true or false. It is case-insensitive.
Dates and Times
No matter the date/date time is complete or partial, it is allowed in AQL as long as it is in ISO8601 date/date time format. Quotes (either single quotes or double quotes) are required to enclose the date/date time value. In AQL grammar, it is treated as a date value if the value is a complete calendar date represented in ISO8601 extended format and if single quotes are used. If the value is in other ISO8601 date/date time format, AQL treats it as a string value, but the AQL query engine processes it differently from a normal string value. It is a temporary solution. In future, a date/date time value should be identified as date/date time value if it is a valid ISO8601 date/date time. Examples are as below:
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WHERE composition/context/start_time > '19860101' // a complete date. It is a string value within the scope of AQL grammar.
WHERE composition/context/start_time < "120000+0930" // ISO8601 time. It is a string value within the scope of AQL grammar.
WHERE composition/context/start_time <= '1986-01-01' // complete calendar date in ISO8601 extended format. It is a date value within the scope of AQL grammar.
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AQL structure
Overview
AQL structure has been briefly introduced in Section 2.2. This section introduces AQL structure in details.
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