Diagnostic repair index

Start with the first INQ diagnostic on your declaration. CS8795 often follows because a rejected partial method has no generated implementation; adding a method body hides the cause. The IDE help link for each active shared or provider-owned ID points to its section below. Entries describe small failing shapes and corrections, not complete standalone projects.

First errors in a starter project

Missing entity mapping: INQ008, then INQ001 if the table has no key.
Unsupported method result: INQ005. Procedure list returns are not supported.
Predicate binding mismatch: INQ019, or INQ006 for the broader operation signature.
Ambiguous or unknown dialect: INQ014 and INQ043.

With no provider package, no provider generator may run at all. Reference a released provider package such as Ignyte.Inquiry.Sqlite. Do not wait for an INQ diagnostic from an analyzer that is not installed.

Severity and suppression

Fix errors rather than suppressing them. Suppression does not turn an invalid mapping into supported SQL and does not guarantee that a partial implementation is emitted. Keep generated SQL hover help for inspecting valid methods; ordinary declaration repairs should start here.

INQ039 is an explicit exception: lowering it to warning or none project-wide opts unsupported methods into synchronous NotSupportedException stubs. That is a deliberate unavailable-operation policy, not a repair. Local pragma suppression is not a substitute for that project-wide choice.

INQ048 is a SQL-injection warning. Suppress it locally only after verifying that dynamic SQL cannot contain untrusted values or identifiers. Bind values with InquirySql.Sql or the FormattableString APIs. DDL lints INQ061, INQ062, INQ064, INQ066, and INQ067 are disabled by default. Enable them deliberately:

[*.cs]
dotnet_diagnostic.INQ061.severity = warning

For an accepted warning, use a narrowly scoped configuration or pragma and document the reason. Each entry below lists the descriptor's default severity and whether it is enabled. Provider SQL limits still apply even when a warning is suppressed. IDs INQ003, INQ013, INQ015, and INQ027 are retired and are not reused. INQ076 belongs to the SQL Server analyzer; the other active IDs are shared.

Worked first-error repairs

Missing mapping

An otherwise valid ProductStore cannot use an undecorated Product. Keep the store declaration and add the mapping to the entity:

using Inquiry.Entities;

[InquiryTable("Products")]
public sealed class Product
{
    [InquiryKey] public int ProductID { get; set; }
    [InquiryColumn] public string ProductName { get; set; } = "";
}

Unsupported procedure list

Failing declaration inside a partial InquiryStore<Product>:

[InquiryStoredProcedure("GetProducts")]
public partial Task<IReadOnlyList<Product>> GetProductsAsync(CancellationToken ct = default);

Corrected declaration for procedure SELECT rows:

[InquiryStoredProcedure("GetProducts")]
public partial IAsyncEnumerable<Product> GetProductsAsync(CancellationToken ct = default);

Consume and, if needed, buffer that stream inside its service scope. Task<Product?> is the supported zero-or-one-row alternative, not a list. Task<int> without read-back options means provider affected rows, not a row list or universal success value. Use the separate OUTPUT/RETURN/INOUT declarations only for their intended channels. See Stored procedures; do not invoke a side-effecting procedure again merely to retrieve another channel.

Predicate mismatch

For a non-nullable integer ProductID, this fails:

[InquirySelectAllByPredicate]
[InquiryWhere(nameof(Product.ProductID))]
public partial Task<IReadOnlyList<Product>> FindAsync(string productID, CancellationToken ct = default);

Change only string productID to int productID. Keep parameters in criterion order. A method parameter name does not bind it to a property by itself.

Dialect selection

Use one provider package for an inferred dialect. If multiple references are intentional, add this assembly attribute in a file with no top-level statements:

[assembly: Inquiry.InquiryDialect("Sqlite")]

Use a name supplied by a referenced provider, and configure the matching runtime provider. This does not allow one generated store assembly to switch SQL dialect at runtime.

All active IDs

INQ001

Entity must have at least one InquiryKey property. Default: error, enabled.

Trigger: A table entity has no key.

Failing shape: [InquiryTable("Products")] class Product { public int Id { get; set; } }

Smallest correction: Mark its identifier [InquiryKey]; keep the deployed primary key consistent.

Table of Contents

Diagnostic repair index

First errors in a starter project

Severity and suppression

Worked first-error repairs

Missing mapping

Unsupported procedure list

Predicate mismatch

Dialect selection

All active IDs

INQ001

INQ002

INQ004

INQ005

INQ006

INQ007

INQ008

INQ009

INQ010

INQ011

INQ012

INQ014

INQ016

INQ017

INQ018

INQ019

INQ020

INQ021

INQ022

INQ023

INQ024

INQ025

INQ026

INQ028

INQ029

INQ030

INQ031

INQ032

INQ033

INQ034

INQ035

INQ036

INQ037

INQ038

INQ039

INQ040

INQ041

INQ042

INQ043

INQ044

INQ045

INQ046

INQ047

INQ048

INQ049

INQ050

INQ051

INQ052

INQ053

INQ054

INQ055

INQ056

INQ057

INQ058

INQ059

INQ060

INQ061

INQ062

INQ063

INQ064

INQ065

INQ066

INQ067

INQ068

INQ069

INQ070

INQ071

INQ072

INQ073

INQ074