diff --git a/src/dbs/executor.rs b/src/dbs/executor.rs
index c16388be..fbb7d826 100644
--- a/src/dbs/executor.rs
+++ b/src/dbs/executor.rs
@@ -1,6 +1,6 @@
-use crate::ctx::Parent;
 use crate::dbs::response::{Response, Responses};
 use crate::dbs::Process;
+use crate::dbs::Runtime;
 use crate::err::Error;
 use crate::sql::query::Query;
 use std::time::Instant;
@@ -21,7 +21,7 @@ impl Executor {
 		}
 	}
 
-	pub fn execute(&self, ctx: &Parent, qry: Query) -> Result<Responses, Error> {
+	pub fn execute(&self, ctx: &Runtime, qry: Query) -> Result<Responses, Error> {
 		let mut r: Vec<Response> = vec![];
 
 		for stm in qry.statements().iter() {
diff --git a/src/dbs/iterator.rs b/src/dbs/iterator.rs
index ccd1cb90..ef634e85 100644
--- a/src/dbs/iterator.rs
+++ b/src/dbs/iterator.rs
@@ -1,5 +1,5 @@
-use crate::ctx::Parent;
 use crate::dbs::Executor;
+use crate::dbs::Runtime;
 use crate::err::Error;
 use crate::sql::literal::Literal;
 
@@ -9,13 +9,13 @@ impl Iterator {
 	pub fn new() -> Iterator {
 		Iterator {}
 	}
-	pub fn process_query(&self, ctx: &Parent, exe: &Executor) {}
-	pub fn process_table(&self, ctx: &Parent, exe: &Executor) {}
-	pub fn process_thing(&self, ctx: &Parent, exe: &Executor) {}
-	pub fn process_model(&self, ctx: &Parent, exe: &Executor) {}
-	pub fn process_array(&self, ctx: &Parent, exe: &Executor) {}
-	pub fn process_object(&self, ctx: &Parent, exe: &Executor) {}
-	pub fn output(&self, ctx: &Parent, exe: &Executor) -> Result<Literal, Error> {
+	pub fn process_query(&self, ctx: &Runtime, exe: &Executor) {}
+	pub fn process_table(&self, ctx: &Runtime, exe: &Executor) {}
+	pub fn process_thing(&self, ctx: &Runtime, exe: &Executor) {}
+	pub fn process_model(&self, ctx: &Runtime, exe: &Executor) {}
+	pub fn process_array(&self, ctx: &Runtime, exe: &Executor) {}
+	pub fn process_object(&self, ctx: &Runtime, exe: &Executor) {}
+	pub fn output(&self, ctx: &Runtime, exe: &Executor) -> Result<Literal, Error> {
 		Ok(Literal::Null)
 	}
 }
diff --git a/src/dbs/mod.rs b/src/dbs/mod.rs
index f3b10ea3..175afb5b 100644
--- a/src/dbs/mod.rs
+++ b/src/dbs/mod.rs
@@ -3,8 +3,10 @@ mod executor;
 mod iterator;
 mod process;
 mod response;
+mod runtime;
 
 pub use self::dbs::*;
 pub use self::executor::*;
 pub use self::iterator::*;
 pub use self::process::*;
+pub use self::runtime::*;
diff --git a/src/dbs/process.rs b/src/dbs/process.rs
index ac628306..0f93cc88 100644
--- a/src/dbs/process.rs
+++ b/src/dbs/process.rs
@@ -1,5 +1,5 @@
-use crate::ctx::Parent;
 use crate::dbs::executor::Executor;
+use crate::dbs::Runtime;
 use crate::doc::Document;
 use crate::err::Error;
 use crate::sql::literal::Literal;
@@ -7,7 +7,7 @@ use crate::sql::literal::Literal;
 pub trait Process {
 	fn process(
 		&self,
-		ctx: &Parent,
+		ctx: &Runtime,
 		exe: &Executor,
 		doc: Option<&Document>,
 	) -> Result<Literal, Error>;
diff --git a/src/dbs/runtime.rs b/src/dbs/runtime.rs
new file mode 100644
index 00000000..5e2248d1
--- /dev/null
+++ b/src/dbs/runtime.rs
@@ -0,0 +1,25 @@
+/*
+ * A Runtime is passed around when processing a set of query
+ * statements. The Runtime contains any saved parameters and
+ * variables set in the SQL, or any pre-defined paramaters which
+ * are determined by the authentication / session / environment.
+ * Embedded queries, and subqueries will create their own Runtime
+ * based off of the parent Runtime, and set their own variables
+ * accordingly. Predetermined variables include:
+ *
+ *    $ENV = "surrealdb.com";
+ *
+ *    $auth.AL = "KV" / "NS" / "DB" / "SC";
+ *    $auth.NS = "";
+ *    $auth.DB = "";
+ *
+ *    $session.id = "";
+ *    $session.ip = "";
+ *    $session.origin = "app.surrealdb.com";
+ *
+ */
+
+use crate::ctx::Context;
+use std::sync::Arc;
+
+pub type Runtime = Arc<Context>;
diff --git a/src/fnc/cast.rs b/src/fnc/cast.rs
index 10aea585..3ffe7944 100644
--- a/src/fnc/cast.rs
+++ b/src/fnc/cast.rs
@@ -1,8 +1,8 @@
-use crate::ctx::Context;
+use crate::dbs::Runtime;
 use crate::err::Error;
 use crate::sql::literal::Literal;
 
-pub fn run(ctx: &Context, name: &String, val: Literal) -> Result<Literal, Error> {
+pub fn run(ctx: &Runtime, name: &String, val: Literal) -> Result<Literal, Error> {
 	match name.as_str() {
 		"bool" => bool(ctx, val),
 		"int" => int(ctx, val),
@@ -16,33 +16,33 @@ pub fn run(ctx: &Context, name: &String, val: Literal) -> Result<Literal, Error>
 	}
 }
 
-pub fn bool(ctx: &Context, val: Literal) -> Result<Literal, Error> {
+pub fn bool(ctx: &Runtime, val: Literal) -> Result<Literal, Error> {
 	match val.as_bool() {
 		true => Ok(Literal::True),
 		false => Ok(Literal::False),
 	}
 }
 
-pub fn int(ctx: &Context, val: Literal) -> Result<Literal, Error> {
+pub fn int(ctx: &Runtime, val: Literal) -> Result<Literal, Error> {
 	Ok(Literal::Int(val.as_int()))
 }
 
-pub fn float(ctx: &Context, val: Literal) -> Result<Literal, Error> {
+pub fn float(ctx: &Runtime, val: Literal) -> Result<Literal, Error> {
 	Ok(Literal::Float(val.as_float()))
 }
 
-pub fn string(ctx: &Context, val: Literal) -> Result<Literal, Error> {
+pub fn string(ctx: &Runtime, val: Literal) -> Result<Literal, Error> {
 	Ok(Literal::Strand(val.as_strand()))
 }
 
-pub fn number(ctx: &Context, val: Literal) -> Result<Literal, Error> {
+pub fn number(ctx: &Runtime, val: Literal) -> Result<Literal, Error> {
 	Ok(Literal::Number(val.as_number()))
 }
 
-pub fn datetime(ctx: &Context, val: Literal) -> Result<Literal, Error> {
+pub fn datetime(ctx: &Runtime, val: Literal) -> Result<Literal, Error> {
 	Ok(Literal::Datetime(val.as_datetime()))
 }
 
-pub fn duration(ctx: &Context, val: Literal) -> Result<Literal, Error> {
+pub fn duration(ctx: &Runtime, val: Literal) -> Result<Literal, Error> {
 	Ok(Literal::Duration(val.as_duration()))
 }
diff --git a/src/fnc/future.rs b/src/fnc/future.rs
index 1e6f5067..6a8c8f7c 100644
--- a/src/fnc/future.rs
+++ b/src/fnc/future.rs
@@ -1,7 +1,7 @@
-use crate::ctx::Parent;
+use crate::dbs::Runtime;
 use crate::err::Error;
 use crate::sql::literal::Literal;
 
-pub fn run(ctx: &Parent, args: Literal) -> Result<Literal, Error> {
+pub fn run(ctx: &Runtime, args: Literal) -> Result<Literal, Error> {
 	todo!()
 }
diff --git a/src/fnc/mod.rs b/src/fnc/mod.rs
index 1ebd85d6..01007797 100644
--- a/src/fnc/mod.rs
+++ b/src/fnc/mod.rs
@@ -1,4 +1,4 @@
-use crate::ctx::Parent;
+use crate::dbs::Runtime;
 use crate::err::Error;
 use crate::sql::literal::Literal;
 
@@ -6,6 +6,6 @@ pub mod cast;
 pub mod future;
 pub mod operate;
 
-pub fn run(ctx: &Parent, name: &String, args: Vec<Literal>) -> Result<Literal, Error> {
+pub fn run(ctx: &Runtime, name: &String, args: Vec<Literal>) -> Result<Literal, Error> {
 	todo!()
 }
diff --git a/src/sql/array.rs b/src/sql/array.rs
index 28ba5e79..b704a9d9 100644
--- a/src/sql/array.rs
+++ b/src/sql/array.rs
@@ -1,6 +1,6 @@
-use crate::ctx::Parent;
 use crate::dbs;
 use crate::dbs::Executor;
+use crate::dbs::Runtime;
 use crate::doc::Document;
 use crate::err::Error;
 use crate::sql::comment::mightbespace;
@@ -36,7 +36,7 @@ impl fmt::Display for Array {
 impl dbs::Process for Array {
 	fn process(
 		&self,
-		ctx: &Parent,
+		ctx: &Runtime,
 		exe: &Executor,
 		doc: Option<&Document>,
 	) -> Result<Literal, Error> {
diff --git a/src/sql/expression.rs b/src/sql/expression.rs
index 78acedf3..881d34be 100644
--- a/src/sql/expression.rs
+++ b/src/sql/expression.rs
@@ -1,6 +1,6 @@
-use crate::ctx::Parent;
 use crate::dbs;
 use crate::dbs::Executor;
+use crate::dbs::Runtime;
 use crate::doc::Document;
 use crate::err::Error;
 use crate::fnc;
@@ -49,7 +49,7 @@ impl fmt::Display for Expression {
 impl dbs::Process for Expression {
 	fn process(
 		&self,
-		ctx: &Parent,
+		ctx: &Runtime,
 		exe: &Executor,
 		doc: Option<&Document>,
 	) -> Result<Literal, Error> {
diff --git a/src/sql/function.rs b/src/sql/function.rs
index 93470093..594d337c 100644
--- a/src/sql/function.rs
+++ b/src/sql/function.rs
@@ -1,6 +1,6 @@
-use crate::ctx::Parent;
 use crate::dbs;
 use crate::dbs::Executor;
+use crate::dbs::Runtime;
 use crate::doc::Document;
 use crate::err::Error;
 use crate::fnc;
@@ -48,7 +48,7 @@ impl fmt::Display for Function {
 impl dbs::Process for Function {
 	fn process(
 		&self,
-		ctx: &Parent,
+		ctx: &Runtime,
 		exe: &Executor,
 		doc: Option<&Document>,
 	) -> Result<Literal, Error> {
diff --git a/src/sql/idiom.rs b/src/sql/idiom.rs
index afa5d660..8f0e53eb 100644
--- a/src/sql/idiom.rs
+++ b/src/sql/idiom.rs
@@ -1,6 +1,6 @@
-use crate::ctx::Parent;
 use crate::dbs;
 use crate::dbs::Executor;
+use crate::dbs::Runtime;
 use crate::doc::Document;
 use crate::err::Error;
 use crate::sql::common::commas;
@@ -76,7 +76,7 @@ impl fmt::Display for Idiom {
 impl dbs::Process for Idiom {
 	fn process(
 		&self,
-		ctx: &Parent,
+		ctx: &Runtime,
 		exe: &Executor,
 		doc: Option<&Document>,
 	) -> Result<Literal, Error> {
diff --git a/src/sql/literal.rs b/src/sql/literal.rs
index 753bbea0..c3f5b79a 100644
--- a/src/sql/literal.rs
+++ b/src/sql/literal.rs
@@ -1,6 +1,6 @@
-use crate::ctx::Parent;
 use crate::dbs;
 use crate::dbs::Executor;
+use crate::dbs::Runtime;
 use crate::doc::Document;
 use crate::err::Error;
 use crate::fnc;
@@ -349,7 +349,7 @@ impl fmt::Display for Literal {
 impl dbs::Process for Literal {
 	fn process(
 		&self,
-		ctx: &Parent,
+		ctx: &Runtime,
 		exe: &Executor,
 		doc: Option<&Document>,
 	) -> Result<Literal, Error> {
diff --git a/src/sql/object.rs b/src/sql/object.rs
index 8e294065..9ad0ecdb 100644
--- a/src/sql/object.rs
+++ b/src/sql/object.rs
@@ -1,6 +1,6 @@
-use crate::ctx::Parent;
 use crate::dbs;
 use crate::dbs::Executor;
+use crate::dbs::Runtime;
 use crate::doc::Document;
 use crate::err::Error;
 use crate::sql::comment::mightbespace;
@@ -45,7 +45,7 @@ impl fmt::Display for Object {
 impl dbs::Process for Object {
 	fn process(
 		&self,
-		ctx: &Parent,
+		ctx: &Runtime,
 		exe: &Executor,
 		doc: Option<&Document>,
 	) -> Result<Literal, Error> {
diff --git a/src/sql/param.rs b/src/sql/param.rs
index 931d58b0..901afa68 100644
--- a/src/sql/param.rs
+++ b/src/sql/param.rs
@@ -1,6 +1,6 @@
-use crate::ctx::Parent;
 use crate::dbs;
 use crate::dbs::Executor;
+use crate::dbs::Runtime;
 use crate::doc::Document;
 use crate::err::Error;
 use crate::sql::common::val_char;
@@ -43,7 +43,7 @@ impl fmt::Display for Param {
 impl dbs::Process for Param {
 	fn process(
 		&self,
-		ctx: &Parent,
+		ctx: &Runtime,
 		exe: &Executor,
 		doc: Option<&Document>,
 	) -> Result<Literal, Error> {
diff --git a/src/sql/statement.rs b/src/sql/statement.rs
index 70141fb5..a33d346c 100644
--- a/src/sql/statement.rs
+++ b/src/sql/statement.rs
@@ -1,6 +1,6 @@
-use crate::ctx::Parent;
 use crate::dbs;
 use crate::dbs::Executor;
+use crate::dbs::Runtime;
 use crate::doc::Document;
 use crate::err::Error;
 use crate::sql::comment::{comment, mightbespace};
@@ -110,7 +110,7 @@ impl fmt::Display for Statement {
 impl dbs::Process for Statement {
 	fn process(
 		&self,
-		ctx: &Parent,
+		ctx: &Runtime,
 		exe: &Executor,
 		doc: Option<&Document>,
 	) -> Result<Literal, Error> {
diff --git a/src/sql/statements/create.rs b/src/sql/statements/create.rs
index 29da5bea..a132f385 100644
--- a/src/sql/statements/create.rs
+++ b/src/sql/statements/create.rs
@@ -1,7 +1,7 @@
-use crate::ctx::Parent;
 use crate::dbs;
 use crate::dbs::Executor;
 use crate::dbs::Iterator;
+use crate::dbs::Runtime;
 use crate::doc::Document;
 use crate::err::Error;
 use crate::sql::comment::shouldbespace;
@@ -46,7 +46,7 @@ impl fmt::Display for CreateStatement {
 impl dbs::Process for CreateStatement {
 	fn process(
 		&self,
-		ctx: &Parent,
+		ctx: &Runtime,
 		exe: &Executor,
 		doc: Option<&Document>,
 	) -> Result<Literal, Error> {
diff --git a/src/sql/statements/define.rs b/src/sql/statements/define.rs
index fba36294..5ac0a512 100644
--- a/src/sql/statements/define.rs
+++ b/src/sql/statements/define.rs
@@ -1,6 +1,6 @@
-use crate::ctx::Parent;
 use crate::dbs;
 use crate::dbs::Executor;
+use crate::dbs::Runtime;
 use crate::doc::Document;
 use crate::err::Error;
 use crate::sql::algorithm::{algorithm, Algorithm};
@@ -56,7 +56,7 @@ impl fmt::Display for DefineStatement {
 impl dbs::Process for DefineStatement {
 	fn process(
 		&self,
-		ctx: &Parent,
+		ctx: &Runtime,
 		exe: &Executor,
 		doc: Option<&Document>,
 	) -> Result<Literal, Error> {
diff --git a/src/sql/statements/delete.rs b/src/sql/statements/delete.rs
index fd08cf95..b1c7c388 100644
--- a/src/sql/statements/delete.rs
+++ b/src/sql/statements/delete.rs
@@ -1,7 +1,7 @@
-use crate::ctx::Parent;
 use crate::dbs;
 use crate::dbs::Executor;
 use crate::dbs::Iterator;
+use crate::dbs::Runtime;
 use crate::doc::Document;
 use crate::err::Error;
 use crate::sql::comment::shouldbespace;
@@ -47,7 +47,7 @@ impl fmt::Display for DeleteStatement {
 impl dbs::Process for DeleteStatement {
 	fn process(
 		&self,
-		ctx: &Parent,
+		ctx: &Runtime,
 		exe: &Executor,
 		doc: Option<&Document>,
 	) -> Result<Literal, Error> {
diff --git a/src/sql/statements/ifelse.rs b/src/sql/statements/ifelse.rs
index c36dabaa..d0eeba25 100644
--- a/src/sql/statements/ifelse.rs
+++ b/src/sql/statements/ifelse.rs
@@ -1,6 +1,6 @@
-use crate::ctx::Parent;
 use crate::dbs;
 use crate::dbs::Executor;
+use crate::dbs::Runtime;
 use crate::doc::Document;
 use crate::err::Error;
 use crate::sql::comment::shouldbespace;
@@ -42,7 +42,7 @@ impl fmt::Display for IfelseStatement {
 impl dbs::Process for IfelseStatement {
 	fn process(
 		&self,
-		ctx: &Parent,
+		ctx: &Runtime,
 		exe: &Executor,
 		doc: Option<&Document>,
 	) -> Result<Literal, Error> {
diff --git a/src/sql/statements/info.rs b/src/sql/statements/info.rs
index 12740708..acd47126 100644
--- a/src/sql/statements/info.rs
+++ b/src/sql/statements/info.rs
@@ -1,6 +1,6 @@
-use crate::ctx::Parent;
 use crate::dbs;
 use crate::dbs::Executor;
+use crate::dbs::Runtime;
 use crate::doc::Document;
 use crate::err::Error;
 use crate::sql::comment::shouldbespace;
@@ -34,7 +34,7 @@ impl fmt::Display for InfoStatement {
 impl dbs::Process for InfoStatement {
 	fn process(
 		&self,
-		ctx: &Parent,
+		ctx: &Runtime,
 		exe: &Executor,
 		doc: Option<&Document>,
 	) -> Result<Literal, Error> {
diff --git a/src/sql/statements/insert.rs b/src/sql/statements/insert.rs
index 76f38c68..ce3b3cf4 100644
--- a/src/sql/statements/insert.rs
+++ b/src/sql/statements/insert.rs
@@ -1,7 +1,7 @@
-use crate::ctx::Parent;
 use crate::dbs;
 use crate::dbs::Executor;
 use crate::dbs::Iterator;
+use crate::dbs::Runtime;
 use crate::doc::Document;
 use crate::err::Error;
 use crate::sql::comment::shouldbespace;
@@ -44,7 +44,7 @@ impl fmt::Display for InsertStatement {
 impl dbs::Process for InsertStatement {
 	fn process(
 		&self,
-		ctx: &Parent,
+		ctx: &Runtime,
 		exe: &Executor,
 		doc: Option<&Document>,
 	) -> Result<Literal, Error> {
diff --git a/src/sql/statements/kill.rs b/src/sql/statements/kill.rs
index 387ed8b9..6e78183a 100644
--- a/src/sql/statements/kill.rs
+++ b/src/sql/statements/kill.rs
@@ -1,6 +1,6 @@
-use crate::ctx::Parent;
 use crate::dbs;
 use crate::dbs::Executor;
+use crate::dbs::Runtime;
 use crate::doc::Document;
 use crate::err::Error;
 use crate::sql::comment::shouldbespace;
@@ -25,7 +25,7 @@ impl fmt::Display for KillStatement {
 impl dbs::Process for KillStatement {
 	fn process(
 		&self,
-		ctx: &Parent,
+		ctx: &Runtime,
 		exe: &Executor,
 		doc: Option<&Document>,
 	) -> Result<Literal, Error> {
diff --git a/src/sql/statements/live.rs b/src/sql/statements/live.rs
index 95d9d2cf..bee189a1 100644
--- a/src/sql/statements/live.rs
+++ b/src/sql/statements/live.rs
@@ -1,6 +1,6 @@
-use crate::ctx::Parent;
 use crate::dbs;
 use crate::dbs::Executor;
+use crate::dbs::Runtime;
 use crate::doc::Document;
 use crate::err::Error;
 use crate::sql::comment::shouldbespace;
@@ -42,7 +42,7 @@ impl fmt::Display for LiveStatement {
 impl dbs::Process for LiveStatement {
 	fn process(
 		&self,
-		ctx: &Parent,
+		ctx: &Runtime,
 		exe: &Executor,
 		doc: Option<&Document>,
 	) -> Result<Literal, Error> {
diff --git a/src/sql/statements/option.rs b/src/sql/statements/option.rs
index e9852293..7b5f2121 100644
--- a/src/sql/statements/option.rs
+++ b/src/sql/statements/option.rs
@@ -1,6 +1,6 @@
-use crate::ctx::Parent;
 use crate::dbs;
 use crate::dbs::Executor;
+use crate::dbs::Runtime;
 use crate::doc::Document;
 use crate::err::Error;
 use crate::sql::comment::mightbespace;
@@ -35,7 +35,7 @@ impl fmt::Display for OptionStatement {
 impl dbs::Process for OptionStatement {
 	fn process(
 		&self,
-		ctx: &Parent,
+		ctx: &Runtime,
 		exe: &Executor,
 		doc: Option<&Document>,
 	) -> Result<Literal, Error> {
diff --git a/src/sql/statements/output.rs b/src/sql/statements/output.rs
index cd07e5c7..4c9adc87 100644
--- a/src/sql/statements/output.rs
+++ b/src/sql/statements/output.rs
@@ -1,6 +1,6 @@
-use crate::ctx::Parent;
 use crate::dbs;
 use crate::dbs::Executor;
+use crate::dbs::Runtime;
 use crate::doc::Document;
 use crate::err::Error;
 use crate::sql::comment::shouldbespace;
@@ -25,7 +25,7 @@ impl fmt::Display for OutputStatement {
 impl dbs::Process for OutputStatement {
 	fn process(
 		&self,
-		ctx: &Parent,
+		ctx: &Runtime,
 		exe: &Executor,
 		doc: Option<&Document>,
 	) -> Result<Literal, Error> {
diff --git a/src/sql/statements/relate.rs b/src/sql/statements/relate.rs
index e8820ae2..29822b1b 100644
--- a/src/sql/statements/relate.rs
+++ b/src/sql/statements/relate.rs
@@ -1,7 +1,7 @@
-use crate::ctx::Parent;
 use crate::dbs;
 use crate::dbs::Executor;
 use crate::dbs::Iterator;
+use crate::dbs::Runtime;
 use crate::doc::Document;
 use crate::err::Error;
 use crate::sql::comment::mightbespace;
@@ -57,7 +57,7 @@ impl fmt::Display for RelateStatement {
 impl dbs::Process for RelateStatement {
 	fn process(
 		&self,
-		ctx: &Parent,
+		ctx: &Runtime,
 		exe: &Executor,
 		doc: Option<&Document>,
 	) -> Result<Literal, Error> {
diff --git a/src/sql/statements/remove.rs b/src/sql/statements/remove.rs
index f44de79d..4edf4779 100644
--- a/src/sql/statements/remove.rs
+++ b/src/sql/statements/remove.rs
@@ -1,6 +1,6 @@
-use crate::ctx::Parent;
 use crate::dbs;
 use crate::dbs::Executor;
+use crate::dbs::Runtime;
 use crate::doc::Document;
 use crate::err::Error;
 use crate::sql::base::{base, Base};
@@ -46,7 +46,7 @@ impl fmt::Display for RemoveStatement {
 impl dbs::Process for RemoveStatement {
 	fn process(
 		&self,
-		ctx: &Parent,
+		ctx: &Runtime,
 		exe: &Executor,
 		doc: Option<&Document>,
 	) -> Result<Literal, Error> {
diff --git a/src/sql/statements/select.rs b/src/sql/statements/select.rs
index c46feb03..de8e7e9b 100644
--- a/src/sql/statements/select.rs
+++ b/src/sql/statements/select.rs
@@ -1,7 +1,7 @@
-use crate::ctx::Parent;
 use crate::dbs;
 use crate::dbs::Executor;
 use crate::dbs::Iterator;
+use crate::dbs::Runtime;
 use crate::doc::Document;
 use crate::err::Error;
 use crate::sql::comment::shouldbespace;
@@ -84,7 +84,7 @@ impl fmt::Display for SelectStatement {
 impl dbs::Process for SelectStatement {
 	fn process(
 		&self,
-		ctx: &Parent,
+		ctx: &Runtime,
 		exe: &Executor,
 		doc: Option<&Document>,
 	) -> Result<Literal, Error> {
diff --git a/src/sql/statements/set.rs b/src/sql/statements/set.rs
index ceccc192..e41ae521 100644
--- a/src/sql/statements/set.rs
+++ b/src/sql/statements/set.rs
@@ -1,6 +1,6 @@
-use crate::ctx::Parent;
 use crate::dbs;
 use crate::dbs::Executor;
+use crate::dbs::Runtime;
 use crate::doc::Document;
 use crate::err::Error;
 use crate::sql::comment::mightbespace;
@@ -29,7 +29,7 @@ impl fmt::Display for SetStatement {
 impl dbs::Process for SetStatement {
 	fn process(
 		&self,
-		ctx: &Parent,
+		ctx: &Runtime,
 		exe: &Executor,
 		doc: Option<&Document>,
 	) -> Result<Literal, Error> {
diff --git a/src/sql/statements/update.rs b/src/sql/statements/update.rs
index 8d2edfa2..ed42abe0 100644
--- a/src/sql/statements/update.rs
+++ b/src/sql/statements/update.rs
@@ -1,7 +1,7 @@
-use crate::ctx::Parent;
 use crate::dbs;
 use crate::dbs::Executor;
 use crate::dbs::Iterator;
+use crate::dbs::Runtime;
 use crate::doc::Document;
 use crate::err::Error;
 use crate::sql::comment::shouldbespace;
@@ -52,7 +52,7 @@ impl fmt::Display for UpdateStatement {
 impl dbs::Process for UpdateStatement {
 	fn process(
 		&self,
-		ctx: &Parent,
+		ctx: &Runtime,
 		exe: &Executor,
 		doc: Option<&Document>,
 	) -> Result<Literal, Error> {
diff --git a/src/sql/statements/upsert.rs b/src/sql/statements/upsert.rs
index cfbc40dd..bb02554d 100644
--- a/src/sql/statements/upsert.rs
+++ b/src/sql/statements/upsert.rs
@@ -1,7 +1,7 @@
-use crate::ctx::Parent;
 use crate::dbs;
 use crate::dbs::Executor;
 use crate::dbs::Iterator;
+use crate::dbs::Runtime;
 use crate::doc::Document;
 use crate::err::Error;
 use crate::sql::comment::shouldbespace;
@@ -44,7 +44,7 @@ impl fmt::Display for UpsertStatement {
 impl dbs::Process for UpsertStatement {
 	fn process(
 		&self,
-		ctx: &Parent,
+		ctx: &Runtime,
 		exe: &Executor,
 		doc: Option<&Document>,
 	) -> Result<Literal, Error> {
diff --git a/src/sql/statements/yuse.rs b/src/sql/statements/yuse.rs
index a595a416..f4be4d1f 100644
--- a/src/sql/statements/yuse.rs
+++ b/src/sql/statements/yuse.rs
@@ -1,6 +1,6 @@
-use crate::ctx::Parent;
 use crate::dbs;
 use crate::dbs::Executor;
+use crate::dbs::Runtime;
 use crate::doc::Document;
 use crate::err::Error;
 use crate::sql::comment::shouldbespace;
@@ -36,7 +36,7 @@ impl fmt::Display for UseStatement {
 impl dbs::Process for UseStatement {
 	fn process(
 		&self,
-		ctx: &Parent,
+		ctx: &Runtime,
 		exe: &Executor,
 		doc: Option<&Document>,
 	) -> Result<Literal, Error> {
diff --git a/src/sql/subquery.rs b/src/sql/subquery.rs
index 60f155a4..186fc94d 100644
--- a/src/sql/subquery.rs
+++ b/src/sql/subquery.rs
@@ -1,7 +1,7 @@
 use crate::ctx::Context;
-use crate::ctx::Parent;
 use crate::dbs;
 use crate::dbs::Executor;
+use crate::dbs::Runtime;
 use crate::doc::Document;
 use crate::err::Error;
 use crate::sql::expression::{expression, Expression};
@@ -61,7 +61,7 @@ impl fmt::Display for Subquery {
 impl dbs::Process for Subquery {
 	fn process(
 		&self,
-		ctx: &Parent,
+		ctx: &Runtime,
 		exe: &Executor,
 		doc: Option<&Document>,
 	) -> Result<Literal, Error> {
diff --git a/src/sql/value.rs b/src/sql/value.rs
index 9a24b82d..40019f13 100644
--- a/src/sql/value.rs
+++ b/src/sql/value.rs
@@ -1,6 +1,6 @@
-use crate::ctx::Parent;
 use crate::dbs;
 use crate::dbs::Executor;
+use crate::dbs::Runtime;
 use crate::doc::Document;
 use crate::err::Error;
 use crate::sql::expression::Expression;
@@ -44,7 +44,7 @@ impl fmt::Display for Value {
 impl dbs::Process for Value {
 	fn process(
 		&self,
-		ctx: &Parent,
+		ctx: &Runtime,
 		exe: &Executor,
 		doc: Option<&Document>,
 	) -> Result<Literal, Error> {