rename to dry-run

core/dbt/adapters/base/relation.py

@@ -1,7 +1,6 @@
 from collections.abc import Hashable
 from dataclasses import dataclass, field
 from typing import Optional, TypeVar, Any, Type, Dict, Iterator, Tuple, Set, Union, FrozenSet
-import uuid
 
 from dbt.contracts.graph.nodes import SourceDefinition, ManifestNode, ResultNode, ParsedNode
 from dbt.contracts.relation import (
@@ -37,7 +36,7 @@ class BaseRelation(FakeAPIObject, Hashable):
     include_policy: Policy = field(default_factory=lambda: Policy())
     quote_policy: Policy = field(default_factory=lambda: Policy())
     dbt_created: bool = False
-    sample: Optional[int] = None
+    dry_run: bool = False
 
     # register relation types that can be renamed for the purpose of replacing relations using stages and backups
     # adding a relation type here also requires defining the associated rename macro
@@ -195,9 +194,8 @@ def _render_iterator(self) -> Iterator[Tuple[Optional[ComponentName], Optional[s
     def render(self) -> str:
         # if there is nothing set, this will return the empty string.
         rendered_parts = ".".join(part for _, part in self._render_iterator() if part is not None)
-        if self.sample and rendered_parts:
-            alias = f"_dbt_sample_{uuid.uuid4().hex.upper()[:6]}"
-            return f"(select * from {rendered_parts} limit {self.sample}) {alias}"
+        if self.dry_run and rendered_parts:
+            return f"(select * from {rendered_parts} limit 0) _dbt_dryrun_subq"
         return rendered_parts
 
     def quoted(self, identifier):

core/dbt/cli/main.py

@@ -342,7 +342,7 @@ def docs_serve(ctx, **kwargs):
 @p.profile
 @p.profiles_dir
 @p.project_dir
-@p.sample
+@p.dry_run
 @p.select
 @p.selector
 @p.inline
@@ -457,7 +457,7 @@ def debug(ctx, **kwargs):
 @p.target
 @p.vars
 @p.source
-@p.dry_run
+@p.dry_run_deps
 @p.lock
 @p.upgrade
 @p.add_package
@@ -600,7 +600,7 @@ def parse(ctx, **kwargs):
 @p.profile
 @p.profiles_dir
 @p.project_dir
-@p.sample
+@p.dry_run
 @p.select
 @p.selector
 @p.state

core/dbt/cli/params.py

@@ -84,6 +84,13 @@
 )
 
 dry_run = click.option(
+    "--dry-run",
+    envvar=None,
+    help="Limit input rows to 0 when resolving dbt ref and sources",
+    is_flag=True,
+)
+
+dry_run_deps = click.option(
     "--dry-run",
     envvar=None,
     help="Option to run `dbt deps --add-package` without updating package-lock.yml file.",
@@ -415,14 +422,6 @@
     hidden=True,
 )
 
-sample = click.option(
-    "--sample",
-    envvar="DBT_SAMPLE",
-    help="Limit by sample rows when resolving dbt ref and sources.",
-    type=click.INT,
-    default=None,
-)
-
 model_decls = ("-m", "--models", "--model")
 select_decls = ("-s", "--select")
 select_attrs = {

core/dbt/context/providers.py

@@ -532,11 +532,11 @@ def create_relation(self, target_model: ManifestNode) -> RelationProxy:
         if target_model.is_ephemeral_model:
             self.model.set_cte(target_model.unique_id, None)
             return self.Relation.create_ephemeral_from_node(
-                self.config, target_model, sample=self.config.args.sample
+                self.config, target_model, dry_run=self.config.args.dry_run
             )
         else:
             return self.Relation.create_from(
-                self.config, target_model, sample=self.config.args.sample
+                self.config, target_model, dry_run=self.config.args.dry_run
             )
 
     def validate(
@@ -594,7 +594,7 @@ def resolve(self, source_name: str, table_name: str):
                 target_kind="source",
                 disabled=(isinstance(target_source, Disabled)),
             )
-        return self.Relation.create_from_source(target_source, sample=self.config.args.sample)
+        return self.Relation.create_from_source(target_source, dry_run=self.config.args.dry_run)
 
 
 # metric` implementations