Example query hacking.

src/datomish/exec_repl.cljc

@@ -95,3 +95,9 @@
                      '[:find ?e ?v :in $ :where
                        [?e :x ?v]
                        #_[(> ?v 1000)]] {}))))))
+
+(dq/parse '[:find ?entity ?tx ?score
+ :in $ ?search
+ :where [(foobar $ :artist/name ?search) [[?entity _ ?tx ?score]]]])
+
+(honeysql.core/format {:select [:?foo] :from [:foo] :where [:match :foo.x "Bar"]})

src/datomish/query.cljc

@@ -134,7 +134,7 @@
   (datomish.query/parse
     '[:find ?page :in $ ?latest :where
       [?page :page/url "http://example.com/"]
-      [?page :page/title ?title]
+      [(fulltext $ :page/title "Some title") [[?page ?title _ _]]]
       (or
         [?entity :page/likes ?page]
         [?entity :page/loves ?page])

src/datomish/query/cc.cljc

@@ -0,0 +1,143 @@
+;; This Source Code Form is subject to the terms of the Mozilla Public
+;; License, v. 2.0. If a copy of the MPL was not distributed with this
+;; file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+(ns datomish.query.cc
+  (:require
+     [datomish.query.source
+      :refer [attribute-in-source
+              constant-in-source]]
+     [datomish.util :as util #?(:cljs :refer-macros :clj :refer) [raise raise-str cond-let]]
+     [datascript.parser :as dp
+      #?@(:cljs
+            [:refer
+             [
+              Constant
+              Placeholder
+              Variable
+              ]])])
+  #?(:clj
+       (:import
+          [datascript.parser
+           Constant
+           Placeholder
+           Variable
+           ])))
+
+
+;; A ConjoiningClauses (CC) is a collection of clauses that are combined with JOIN.
+;; The topmost form in a query is a ConjoiningClauses.
+;;
+;;---------------------------------------------------------------------------------------
+;; Done:
+;; - Ordinary pattern clauses turn into FROM parts and WHERE parts using :=.
+;; - Predicate clauses turn into the same, but with other functions.
+;; - `not` turns into NOT EXISTS with WHERE clauses inside the subquery to
+;;   bind it to the outer variables, or adds simple WHERE clauses to the outer
+;;   clause.
+;; - `not-join` is similar, but with explicit binding.
+;;
+;; Not yet done:
+;; - Function clauses with bindings turn into:
+;;   * Subqueries. Perhaps less efficient? Certainly clearer.
+;;   * Projection expressions, if only used for output.
+;;   * Inline expressions?
+;; - `or` turns into a collection of UNIONs inside a subquery.
+;;   `or`'s documentation states that all clauses must include the same vars,
+;;   but that's an over-simplification: all clauses must refer to the external
+;;   unification vars.
+;;   The entire UNION-set is JOINed to any surrounding expressions per the `rule-vars`
+;;   clause, or the intersection of the vars in the two sides of the JOIN.
+;;---------------------------------------------------------------------------------------
+;;
+;; `from` is a list of [source alias] pairs, suitable for passing to honeysql.
+;; `bindings` is a map from var to qualified columns.
+;; `wheres` is a list of fragments that can be joined by `:and`.
+(defrecord ConjoiningClauses [source from external-bindings bindings wheres])
+
+(defn bind-column-to-var [cc variable col]
+  (let [var (:symbol variable)]
+    (util/conj-in cc [:bindings var] col)))
+
+(defn constrain-column-to-constant [cc col position value]
+  (util/conj-in cc [:wheres]
+                [:= col (if (= :a position)
+                          (attribute-in-source (:source cc) value)
+                          (constant-in-source (:source cc) value))]))
+
+(defn augment-cc [cc from bindings wheres]
+  (assoc cc
+         :from (concat (:from cc) from)
+         :bindings (merge-with concat (:bindings cc) bindings)
+         :wheres (concat (:wheres cc) wheres)))
+
+(defn merge-ccs [left right]
+  (augment-cc left (:from right) (:bindings right) (:wheres right)))
+
+(defn- bindings->where
+  "Take a bindings map like
+    {?foo [:datoms12.e :datoms13.v :datoms14.e]}
+  and produce a list of constraints expression like
+    [[:= :datoms12.e :datoms13.v] [:= :datoms12.e :datoms14.e]]
+
+  TODO: experiment; it might be the case that producing more
+  pairwise equalities we get better or worse performance."
+  [bindings]
+  (mapcat (fn [[_ vs]]
+            (when (> (count vs) 1)
+              (let [root (first vs)]
+                (map (fn [v] [:= root v]) (rest vs)))))
+          bindings))
+
+;; This is so we can link clauses to the outside world.
+(defn- impose-external-bindings [cc]
+  (if (empty? (:external-bindings cc))
+    cc
+    (let [ours (:bindings cc)
+          theirs (:external-bindings cc)
+          vars (clojure.set/intersection (set (keys theirs)) (set (keys ours)))]
+      (util/concat-in
+        cc [:wheres]
+        (map
+          (fn [v]
+            (let [external (first (v theirs))
+                  internal (first (v ours))]
+              (assert external)
+              (assert internal)
+              [:= external internal]))
+          vars)))))
+
+(defn expand-where-from-bindings
+  "Take the bindings in the CC and contribute
+   additional where clauses. Calling this more than
+   once will result in duplicate clauses."
+  [cc]
+  (impose-external-bindings
+    (assoc cc :wheres
+           ;; Note that the order of clauses here means that cross-pattern var bindings
+           ;; come first. That's OK: the SQL engine considers these altogether.
+           (concat (bindings->where (:bindings cc))
+                   (:wheres cc)))))
+
+(defn binding-for-symbol-or-throw [cc symbol]
+  (let [internal-bindings (symbol (:bindings cc))
+        external-bindings (symbol (:external-bindings cc))]
+    (or (first internal-bindings)
+        (first external-bindings)
+        (raise-str "No bindings yet for " symbol))))
+
+(defn argument->value
+  "Take a value from an argument list and resolve it against the CC.
+   Throws if the value can't be resolved (e.g., no binding is established)."
+  [cc arg]
+  (condp instance? arg
+    Placeholder
+    (raise-str "Can't use a placeholder in a predicate.")
+
+    Variable
+    (binding-for-symbol-or-throw cc (:symbol arg))
+
+    Constant
+    (constant-in-source (:source cc) (:value arg))
+
+    (raise-str "Unknown predicate argument " arg)))

src/datomish/query/clauses.cljc

@@ -4,6 +4,8 @@
 
 (ns datomish.query.clauses
   (:require
+     [datomish.query.cc :as cc]
+     [datomish.query.functions :as functions]
      [datomish.query.source
       :refer [attribute-in-source
               constant-in-source
@@ -13,105 +15,35 @@
      [datascript.parser :as dp
       #?@(:cljs
             [:refer
-             [PlainSymbol Predicate Not Or Pattern DefaultSrc Variable Constant Placeholder]])]
+             [
+              Constant
+              DefaultSrc
+              Function
+              Not
+              Or
+              Pattern
+              Placeholder
+              PlainSymbol
+              Predicate
+              Variable
+              ]])]
      [honeysql.core :as sql]
      [clojure.string :as str]
      )
   #?(:clj
        (:import
           [datascript.parser
-           PlainSymbol Predicate Not Or Pattern DefaultSrc Variable Constant Placeholder])))
-
-;; A ConjoiningClauses (CC) is a collection of clauses that are combined with JOIN.
-;; The topmost form in a query is a ConjoiningClauses.
-;;
-;;---------------------------------------------------------------------------------------
-;; Done:
-;; - Ordinary pattern clauses turn into FROM parts and WHERE parts using :=.
-;; - Predicate clauses turn into the same, but with other functions.
-;; - `not` turns into NOT EXISTS with WHERE clauses inside the subquery to
-;;   bind it to the outer variables, or adds simple WHERE clauses to the outer
-;;   clause.
-;; - `not-join` is similar, but with explicit binding.
-;;
-;; Not yet done:
-;; - Function clauses with bindings turn into:
-;;   * Subqueries. Perhaps less efficient? Certainly clearer.
-;;   * Projection expressions, if only used for output.
-;;   * Inline expressions?
-;; - `or` turns into a collection of UNIONs inside a subquery.
-;;   `or`'s documentation states that all clauses must include the same vars,
-;;   but that's an over-simplification: all clauses must refer to the external
-;;   unification vars.
-;;   The entire UNION-set is JOINed to any surrounding expressions per the `rule-vars`
-;;   clause, or the intersection of the vars in the two sides of the JOIN.
-;;---------------------------------------------------------------------------------------
-;;
-;; `from` is a list of [source alias] pairs, suitable for passing to honeysql.
-;; `bindings` is a map from var to qualified columns.
-;; `wheres` is a list of fragments that can be joined by `:and`.
-(defrecord ConjoiningClauses [source from external-bindings bindings wheres])
-
-(defn bind-column-to-var [cc variable col]
-  (let [var (:symbol variable)]
-    (util/conj-in cc [:bindings var] col)))
-
-(defn constrain-column-to-constant [cc col position value]
-  (util/conj-in cc [:wheres]
-                [:= col (if (= :a position)
-                          (attribute-in-source (:source cc) value)
-                          (constant-in-source (:source cc) value))]))
-
-(defn merge-ccs [left right]
-  (assoc left
-         :from (concat (:from left) (:from right))
-         :bindings (merge-with concat (:bindings left) (:bindings right))
-         :wheres (concat (:wheres left) (:wheres right))))
-
-(defn- bindings->where
-  "Take a bindings map like
-    {?foo [:datoms12.e :datoms13.v :datoms14.e]}
-  and produce a list of constraints expression like
-    [[:= :datoms12.e :datoms13.v] [:= :datoms12.e :datoms14.e]]
-
-  TODO: experiment; it might be the case that producing more
-  pairwise equalities we get better or worse performance."
-  [bindings]
-  (mapcat (fn [[_ vs]]
-            (when (> (count vs) 1)
-              (let [root (first vs)]
-                (map (fn [v] [:= root v]) (rest vs)))))
-          bindings))
-
-;; This is so we can link clauses to the outside world.
-(defn impose-external-bindings [cc]
-  (if (empty? (:external-bindings cc))
-    cc
-    (let [ours (:bindings cc)
-          theirs (:external-bindings cc)
-          vars (clojure.set/intersection (set (keys theirs)) (set (keys ours)))]
-      (util/concat-in
-        cc [:wheres]
-        (map
-          (fn [v]
-            (let [external (first (v theirs))
-                  internal (first (v ours))]
-              (assert external)
-              (assert internal)
-              [:= external internal]))
-          vars)))))
-
-(defn expand-where-from-bindings
-  "Take the bindings in the CC and contribute
-   additional where clauses. Calling this more than
-   once will result in duplicate clauses."
-  [cc]
-  (impose-external-bindings
-    (assoc cc :wheres
-           ;; Note that the order of clauses here means that cross-pattern var bindings
-           ;; come first. That's OK: the SQL engine considers these altogether.
-           (concat (bindings->where (:bindings cc))
-                   (:wheres cc)))))
+           Constant
+           DefaultSrc
+           Function
+           Not
+           Or
+           Pattern
+           Placeholder
+           PlainSymbol
+           Predicate
+           Variable
+           ])))
 
 ;; Pattern building is recursive, so we need forward declarations.
 (declare
@@ -138,16 +70,19 @@
             cc
 
             Variable
-            (bind-column-to-var cc pattern-part col)
+            (cc/bind-column-to-var cc pattern-part col)
 
             Constant
-            (constrain-column-to-constant cc col position (:value pattern-part))
+            (cc/constrain-column-to-constant cc col position (:value pattern-part))
 
-            (raise-str "Unknown pattern part " pattern-part))))
+            (raise "Unknown pattern part." {:part pattern-part :clause pattern}))))
 
       cc
       places)))
 
+(defn pattern->attribute [pattern]
+  (second (:pattern pattern)))
+
 ;; Accumulates a pattern into the CC. Returns a new CC.
 (defn apply-pattern-clause
   "Transform a DataScript Pattern instance into the parts needed
@@ -162,7 +97,11 @@
   (when-not (instance? DefaultSrc (:source pattern))
     (raise-str "Non-default sources are not supported in patterns. Pattern: " pattern))
 
-  (let [[table alias] (source->from (:source cc))]   ; e.g., [:datoms :datoms123]
+  ;; TODO: look up the attribute in external bindings if it's a var. Perhaps we
+  ;; already know what it is…
+  (let [[table alias] (source->from
+                        (:source cc)     ; e.g., [:datoms :datoms123]
+                        (pattern->attribute pattern))]
     (apply-pattern-clause-for-alias
 
       ;; Record the new table mapping.
@@ -184,26 +123,7 @@
     (when-not f
       (raise-str "Unknown function " (:fn predicate)))
 
-    (let [args (map
-                 (fn [arg]
-                   (condp instance? arg
-                     Placeholder
-                     (raise-str "Can't use a placeholder in a predicate.")
-
-                     Variable
-                     (let [v (:symbol arg)
-                           internal-bindings (v (:bindings cc))
-                           external-bindings (v (:external-bindings cc))]
-                       (or (first internal-bindings)
-                           (first external-bindings)
-                           (raise-str "No bindings yet for " v)))
-
-                     Constant
-                     (constant-in-source (:source cc) (:value arg))
-
-                     (raise-str "Unknown predicate argument " arg)))
-
-                 (:args predicate))]
+    (let [args (map (partial cc/argument->value cc) (:args predicate))]
       (util/conj-in cc [:wheres] (cons f args)))))
 
 (defn apply-not-clause [cc not]
@@ -242,15 +162,19 @@
   ;; subquery.
 
   (if (simple-or? orc)
-    (merge-ccs cc (simple-or->cc (:source cc)
-                                 (merge-with concat
-                                             (:external-bindings cc)
-                                             (:bindings cc))
-                                 orc))
+    (cc/merge-ccs cc (simple-or->cc (:source cc)
+                                    (merge-with concat
+                                                (:external-bindings cc)
+                                                (:bindings cc))
+                                    orc))
 
     ;; TODO: handle And within the Or patterns.
     (raise "Non-simple `or` clauses not yet supported." {:clause orc})))
 
+(defn apply-function-clause [cc function]
+  (or (functions/apply-sql-function cc function)
+      (raise "Unknown function expression." {:clause function})))
+
 ;; We're keeping this simple for now: a straightforward type switch.
 (defn apply-clause [cc it]
   (condp instance? it
@@ -266,6 +190,9 @@
     Pattern
     (apply-pattern-clause cc it)
 
+    Function
+    (apply-function-clause cc it)
+
     (raise "Unknown clause." {:clause it})))
 
 (defn expand-pattern-clauses
@@ -274,9 +201,9 @@
   (reduce apply-clause cc patterns))
 
 (defn patterns->cc [source patterns external-bindings]
-  (expand-where-from-bindings
+  (cc/expand-where-from-bindings
     (expand-pattern-clauses
-      (map->ConjoiningClauses
+      (cc/map->ConjoiningClauses
         {:source source
          :from []
          :external-bindings (or external-bindings {})
@@ -367,7 +294,7 @@
   ;; We 'fork' a CC for each pattern, then union them together.
   ;; We need to build the first in order that the others use the same
   ;; column names.
-  (let [cc (map->ConjoiningClauses
+  (let [cc (cc/map->ConjoiningClauses
              {:source source
               :from []
               :external-bindings (or external-bindings {})

src/datomish/query/functions.cljc

@@ -0,0 +1,164 @@
+;; This Source Code Form is subject to the terms of the Mozilla Public
+;; License, v. 2.0. If a copy of the MPL was not distributed with this
+;; file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+(ns datomish.query.functions
+  (:require
+     [honeysql.format :as fmt]
+     [datomish.query.cc :as cc]
+     [datomish.query.source :as source]
+     [datomish.util :as util #?(:cljs :refer-macros :clj :refer) [raise raise-str cond-let]]
+     [datascript.parser :as dp
+      #?@(:cljs
+            [:refer
+             [
+              BindColl
+              BindScalar
+              BindTuple
+              BindIgnore
+              Constant
+              Function
+              PlainSymbol
+              SrcVar
+              Variable
+              ]])]
+     [honeysql.core :as sql]
+     [clojure.string :as str]
+     )
+  #?(:clj
+       (:import
+          [datascript.parser
+           BindColl
+           BindScalar
+           BindTuple
+           BindIgnore
+           Constant
+           Function
+           PlainSymbol
+           SrcVar
+           Variable
+           ])))
+
+;; honeysql's MATCH handler doesn't work for sqlite. This does.
+(defmethod fmt/fn-handler "match" [_ col val]
+  (str (fmt/to-sql col) " MATCH " (fmt/to-sql val)))
+
+(defn fulltext-attribute? [source attribute]
+  ;; TODO: schema lookup.
+  true)
+
+(defn- validate-fulltext-clause [cc function]
+  (let [[src attr search] (:args function)]
+    (when-not (and (instance? SrcVar src)
+                   (= "$" (name (:symbol src))))
+      (raise "Non-default sources not supported." {:arg src}))
+    (when-not (instance? Constant attr)
+      (raise "Non-constant fulltext attributes not supported." {:arg attr}))
+
+    (when-not (fulltext-attribute? (:source cc) (:value attr))
+      (raise-str "Attribute " (:value attr) " is not a fulltext-indexed attribute."))
+
+    (when-not (and (instance? BindColl (:binding function))
+                   (instance? BindTuple (:binding (:binding function)))
+                   (every? (fn [s]
+                             (or (instance? BindIgnore s)
+                                 (and (instance? BindScalar s)
+                                      (instance? Variable (:variable s)))))
+                           (:bindings (:binding (:binding function)))))
+      (raise "Unexpected binding value." {:binding (:binding function)}))))
+
+(defn apply-fulltext-clause [cc function]
+  (validate-fulltext-clause cc function)
+
+  ;; A fulltext search string is either a constant string or a variable binding.
+  ;; The search string and the attribute are used to generate a SQL MATCH expression:
+  ;; table MATCH 'search string'
+  ;; This is then joined against an ordinary pattern to yield entity, value, and tx.
+  ;; We do not currently support scoring; the score value will always be 0.
+  (let [[src attr search] (:args function)
+
+        ;; Pull out the symbols for the binding array.
+        [entity value tx score]
+        (map (comp :symbol :variable)     ; This will nil-out placeholders.
+             (get-in function [:binding :binding :bindings]))
+
+        ;; Find the FTS table name and alias. We might have multiple fulltext
+        ;; expressions so we will generate a query like
+        ;;   SELECT ttt.a FROM t1 AS ttt WHERE ttt.t1 MATCH 'string'
+        [fts-table fts-alias] (source/source->fts-from (:source cc))   ; [:t1 :ttt]
+        match-column (sql/qualify fts-alias fts-table)          ; :ttt.t1
+        match-value (cc/argument->value cc search)
+
+        [datom-table datom-alias] (source/source->non-fts-from (:source cc))
+
+        ;; The following will end up being added to the CC.
+        from [[fts-table fts-alias]
+              [datom-table datom-alias]]
+
+        wheres [[:match match-column match-value]      ; The FTS match.
+
+                ;; The FTS rowid to datom correspondence.
+                [:=
+                 (sql/qualify datom-alias :v)
+                 (sql/qualify fts-alias :rowid)]
+
+                ;; The attribute itself must match.
+                [:=
+                 (sql/qualify datom-alias :a)
+                 (source/attribute-in-source (:source cc) (:value attr))]]
+
+        ;; Now compose any bindings for entity, value, tx, and score.
+        ;; TODO: do we need to examine existing bindings to capture
+        ;; wheres for any of these? We shouldn't, because the CC will
+        ;; be internally cross-where'd when everything is done...
+        bindings (into {}
+                       (filter
+                         (comp not nil? first)
+                         [[entity [(sql/qualify datom-alias :e)]]
+                          [value [match-column]]
+                          [tx [(sql/qualify datom-alias :tx)]]
+
+                          ;; Future: use matchinfo to compute a score
+                          ;; if this is a variable rather than a placeholder.
+                          [score [0]]]))]
+
+    (cc/augment-cc cc from bindings wheres)))
+
+(def sql-functions
+  ;; Future: versions of this that uses snippet() or matchinfo().
+  {"fulltext" apply-fulltext-clause})
+
+(defn apply-sql-function
+  "Either returns an application of `function` to `cc`, or nil to
+   encourage you to try a different application."
+  [cc function]
+  (when (and (instance? Function function)
+             (instance? PlainSymbol (:fn function)))
+    (when-let [apply-f (get sql-functions (name (:symbol (:fn function))))]
+      (apply-f cc function))))
+
+;; A fulltext expression parses to:
+;;
+;; Function ( :fn, :args )
+;;
+;; The args begin with a SrcVar, and then are attr and search.
+;;
+;; This binds a relation of [?entity ?value ?tx ?score]:
+;;
+;;   BindColl
+;;     :binding BindTuple
+;;       :bindings [BindScalar...]
+;;
+;; #datascript.parser.Function
+;; {:fn #datascript.parser.PlainSymbol{:symbol fulltext},
+;;  :args [#datascript.parser.SrcVar{:symbol $}
+;;         #datascript.parser.Constant{:value :artist/name}
+;;         #datascript.parser.Variable{:symbol ?search}],
+;;  :binding #datascript.parser.BindColl
+;;           {:binding #datascript.parser.BindTuple
+;;                     {:bindings [
+;;                       #datascript.parser.BindScalar{:variable #datascript.parser.Variable{:symbol ?entity}}
+;;                       #datascript.parser.BindScalar{:variable #datascript.parser.Variable{:symbol ?name}}
+;;                       #datascript.parser.BindScalar{:variable #datascript.parser.Variable{:symbol ?tx}}
+;;                       #datascript.parser.BindScalar{:variable #datascript.parser.Variable{:symbol ?score}}]}}}
+

src/datomish/query/source.cljc

@@ -4,7 +4,15 @@
 
 (ns datomish.query.source
   (:require
-   [datomish.query.transforms :as transforms]))
+     [datomish.query.transforms :as transforms]
+     [datascript.parser
+      #?@(:cljs
+            [:refer [Variable Constant Placeholder]])])
+  #?(:clj
+       (:import [datascript.parser Variable Constant Placeholder])))
+
+(defn- gensym-table-alias [table]
+  (gensym (name table)))
 
 ;;;
 ;;; A source is something that can match patterns. For example:
@@ -24,9 +32,21 @@
 ;;; * Transform constants and attributes into something usable
 ;;;   by the source.
 
+(defprotocol Source
+  (source->from [source attribute]
+    "Returns a pair, `[table alias]` for a pattern with the provided attribute.")
+  (source->non-fts-from [source])
+  (source->fts-from [source]
+    "Returns a pair, `[table alias]` for querying the source's fulltext index.")
+  (source->constraints [source alias])
+  (attribute-in-source [source attribute])
+  (constant-in-source [source constant]))
+
 (defrecord
-  Source
-  [table               ; e.g., :datoms
+  DatomsSource
+  [table               ; Typically :datoms.
+   fts-table           ; Typically :fulltext_values
+   fts-view            ; Typically :fulltext_datoms.
    columns             ; e.g., [:e :a :v :tx]
 
    ;; `attribute-transform` is a function from attribute to constant value. Used to
@@ -41,29 +61,47 @@
 
    ;; Not currently used.
    make-constraints    ; ?fn [source alias] => [where-clauses]
-   ])
+   ]
+  Source
 
-(defn gensym-table-alias [table]
-  (gensym (name table)))
+  (source->from [source attribute]
+    (let [table
+          (if (and (instance? Constant attribute)
+                   ;; TODO: look in the DB schema to see if `attribute` is known to not be
+                   ;; a fulltext attribute.
+                   true)
+            (:table source)
+
+            ;; It's variable. We must act as if it could be a fulltext datom.
+            (:fts-view source))]
+      [table ((:table-alias source) table)]))
+
+  (source->non-fts-from [source]
+    (let [table (:table source)]
+      [table ((:table-alias source) table)]))
+
+  (source->fts-from [source]
+    (let [table (:fts-table source)]
+      [table ((:table-alias source) table)]))
+
+  (source->constraints [source alias]
+    (when-let [f (:make-constraints source)]
+      (f alias)))
+
+  (attribute-in-source [source attribute]
+    ((:attribute-transform source) attribute))
+
+  (constant-in-source [source constant]
+    ((:constant-transform source) constant)))
 
 (defn datoms-source [db]
-  (->Source :datoms
-            [:e :a :v :tx :added]
-            transforms/attribute-transform-string
-            transforms/constant-transform-default
-            gensym-table-alias
-            nil))
+  (map->DatomsSource
+    {:table :datoms
+     :fts-table :fulltext_values
+     :fts-view :fulltext_datoms
+     :columns [:e :a :v :tx :added]
+     :attribute-transform transforms/attribute-transform-string
+     :constant-transform transforms/constant-transform-default
+     :table-alias gensym-table-alias
+     :make-constraints nil}))
 
-(defn source->from [source]
-  (let [table (:table source)]
-    [table ((:table-alias source) table)]))
-
-(defn source->constraints [source alias]
-  (when-let [f (:make-constraints source)]
-    (f alias)))
-
-(defn attribute-in-source [source attribute]
-  ((:attribute-transform source) attribute))
-
-(defn constant-in-source [source constant]
-  ((:constant-transform source) constant))

test/datomish/test/query.cljc

@@ -26,8 +26,10 @@
        (fgensym s (dec (swap! counter inc)))))))
 
 (defn mock-source [db]
-  (source/map->Source
+  (source/map->DatomsSource
     {:table :datoms
+     :fts-table :fulltext_values
+     :fts-view :fulltext_datoms
      :columns [:e :a :v :tx :added]
      :attribute-transform transforms/attribute-transform-string
      :constant-transform transforms/constant-transform-default