Set

set – set one or multiple session-level parameters

set module module ;
set alias alias as module module ;
set global name := expr ;

Description

This command allows altering the configuration of the current session.

Variations

set module module

Set the default module for the current section to module.

For example, if a module foo contains type FooType, the following is how the type can be referred to:

# Use the fully-qualified name.
select foo::FooType;
# Use the WITH clause to define the default module
# for the query.
with module foo select foo::FooType;
# Set the default module for the current session ...
set module foo;
# ... and use an unqualified name.
select FooType;

set alias alias as module module

Define alias for the module.

For example:

# Use the fully-qualified name.
select foo::FooType;
# Use the WITH clause to define a custom alias
# for the "foo" module.
with bar as module foo
select bar::FooType;
# Define "bar" as an alias for the "foo" module for
# the current session ...
set alias bar as module foo;
# ... and use "bar" instead of "foo".
select bar::FooType;

set global name := expr

Set the global variable name to the specified value.

For example:

# Set the global variable "current_user_id".
set global current_user_id :=
    <uuid>'00ea8eaa-02f9-11ed-a676-6bd11cc6c557';
# We can now use that value in a query.
select User { name }
filter .id = global current_user_id;

Examples

set module foo;
set alias foo AS module std;
set global current_user_id :=
    <uuid>'00ea8eaa-02f9-11ed-a676-6bd11cc6c557';

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